Sight Search

Chuck Davis: The Blue in Black and White

Text by Stephen Frink, Images and captions by Chuck Davis

I knew Chuck Davis’ photography long before I met the man, so interviewing him revealed a wealth of fascinating information. One of the most surprising things I learned is that Chuck shot on film all the black-and-white images featured here and processed and printed them in his darkroom.

He is famous as a master of underwater black-and-white photography, but I assumed he shot digital and converted his files to black and white in Lightroom or Photoshop. Digital tools have become standard, even for legacy enthusiasts (like me) who began with fingers yellowed from fixer and the smell of Dektol paper developer lingering in our noses. Davis is an ardent traditionalist, which is different from being a Luddite, as he is quick to point out.  
 
Davis shoots with a medium-format Contax 645 and a Zeiss 35mm wide-angle lens. He devised a custom housing that his contacts in the motion picture industry in California designed and manufactured. Shooting the 645 format allows him 16 exposures on a roll of 120 film and 32 on a roll of 220. Having only 32 exposures per dive requires a different imaging philosophy from the virtually unlimited capacity we have with digital. He sees his photographic opportunities differently and by necessity is more circumspect and disciplined about each click of the shutter.
Despite their razor-sharp teeth, I find great white sharks (Carcharodon carcharias) to be beautiful objects of art. I photographed this individual at Guadalupe Island, Mexico. I was shooting from a surface cage and watched through my viewfinder as this massive great white swam slowly but directly at my lens. Each of the three or four frames of the shark approaching was more dramatic than the last. This shot is the final frame. Before I could trip my shutter again, this powerful and curious creature bumped my lens shade and knocked me to the other side of the cage. I didn’t take the bump personally; I figured the shark was just curious and perhaps distracted by its reflection in my oversized camera port before it could activate its brakes. ©CHUCK DAVIS
His film of choice is Kodak T-Max, which he processes according to the range of light from the day of the shoot. He might be shooting in a kelp forest, for example, where the shadow detail is important and usable highlights seem in control. Knowing that he can control the contrast in development, Davis makes sure to give adequate exposure to the deep shadow areas. He may process it differently if he decides to shoot an upward angle with a sunburst dominating the composition.

After processing the negative, he loads the film carrier into his Ilford enlarger, which has a compensating head designed specifically for black and white. His paper of choice is Ilford variable contrast fiber paper; he chooses the contrast grade that will best complement the subject. Sometimes he’ll use exotic techniques such as split printing, in which he renders shadows and highlights separately.
 
Davis recycles his chemicals to reduce his carbon footprint and no longer uses running water when printing. Instead, he employs a special rinse aid before bathing his prints in his archival washer, significantly reducing wash time and conserving resources. He says of his darkroom, “It is my happy place. As long as they keep making film, I’ll keep using it.”
I took this close-up of the apical tip of a giant kelp (Macrocystis pyrifera) stalk at Santa Rosa Island, part of the Channel Islands National Marine Sanctuary in California. I was diving with Ernie Brooks after he had kindly invited me for a reunion trip on his boat. He generously helped me refine my black-and-white underwater photography technique. He convinced me to leave my strobes on the boat for the first dive and shoot with available light. I discovered this strand of kelp in shallow water as we began our descent, and suddenly the kelp started to glow in my camera’s eyepiece, and I clicked my shutter. I realized when I looked up that Ernie had opened a small hole in the kelp canopy and lit my subject for me. Thank you, Ernie! ©CHUCK DAVIS
Born in 1954 in Bangor, Maine, Davis became an island boy at age 5, when his father became principal of Martha’s Vineyard Regional High School in Massachusetts. His mother was a nurse at Martha’s Vineyard Hospital. The island was very rural then, and Davis grew up with the smell of salt air rolling in from the North Atlantic. The ocean was a living thing that he experienced through freediving and spearfishing. He had a paper route that funded occasional purchases of dive gear, such as blue Voit fins to match those Mike Nelson wore in Sea Hunt, although they looked gray in a black-and-white television show.

An interview on Rfotofolio.org documents those early years, including his early photographic inspiration: “[A] year or so after learning to scuba dive … [I] took up underwater photography very seriously. I was motivated by the amazing images I had viewed on TV via Lloyd Bridges’ Sea Hunt and the Undersea World of Jacques Cousteau and still photos I had seen in Cousteau’s books such as The Silent World and World Without Sun — and the wonderful images I had seen in a book called Camera Below by Paul Tzimoulis and Hank Frey … and of course the photographs I would see each month in Skin Diver magazine.”

Davis’ first underwater camera was a Nikonos II with a 35mm lens, which he purchased in 1968 for $160. With rolls of Tri-X film and a Sekonic light meter, he shot using available light and learned by trial and error. His high school had a darkroom, and he learned the complexities of the Zone System, developing the skills to manipulate the negative and the print. He went to the Boston Sea Rovers annual shows and absorbed all he could from the underwater photography workshops.
A school of blue rockfish is silhouetted beneath the canopy of a giant kelp forest at Hopkins Reef in Monterey Bay near Pacific Grove, California. Chuck Davis captured this image using his Contax 645 medium-format film camera with a Zeiss 35mm wide-angle lens in a custom housing, integrating a large aspherical correction port.
By college age he was using Kodachrome film and a strobe and wanted to go to the Brooks Institute of Photography, the nation’s premier photo education facility. His dad contended that he needed a real job to fall back on, so he attended the University of Massachusetts Amherst and earned a bachelor’s degree in fisheries biology. His fisheries department advisor asked him what he wanted to do now that he had his degree, and his answer was to go to the Brooks Institute and be an underwater photographer.
With his worldly goods loaded into his Volkswagen Super Beetle, Davis headed west. He met Ernie Brooks soon after enrolling. Brooks’ dad had founded the school, and Ernie had already gained acclaim for his underwater black-and-white photography. Their first collaboration was a documentary film spanning a year of going out on Brooks’ boat with cinematographer Louis Prezelin. It was an amazing apprenticeship, and Davis also met Mal Wolfe during that time. Wolfe brought him into the world of IMAX cinematography just as Prezelin had provided the early introduction that led him to his work with the Cousteau Society.

school of blue rockfish (Sebastes mystinus)
Sometimes on a clear, sunny day in a giant kelp forest, it feels like being in an underwater cathedral. I photographed this school of blue rockfish (Sebastes mystinus) at a site known as Cannery Point in the Point Lobos State Marine Reserve. When I first encountered this large school, I was tempted to compose the scene in a horizontal format. As I prepared for the shot, I shifted my camera into a vertical position. I realized my lens’ wide-angle barreling effect made the kelp stalks resemble Gothic arches, like those from a medieval church. I was shooting a silhouette into bright sunlight, so I had to be careful to get adequate exposure in the shadows. I overexposed the image a wee bit and controlled the highlights when I processed my film. ©CHUCK DAVIS
Davis started as a volunteer cameraman with the Cousteaus. Davis was only loading cameras and pulling focus, but he was working with Jacques Cousteau and his son Jean-Michel. While it didn’t last forever, he stayed in touch over the next five years, hoping they would hire him. Meanwhile, he joined the special effects industry in Hollywood, where he learned new skills and banked some money. When the Cousteaus launched their expedition ship Alcyone, they invited Davis to join their 13-person crew. Sometimes he would work on the Calypso as well. Davis still remembers his time with Jacques at the helm as his dream job. For the next 20 years Davis freelanced for the Cousteau Society and Jean-Michel’s Ocean Futures Society.

For all his cinematography work, stills — particularly black and white — remained his personal passion. It is logical that someone immersed in the art of black-and-white photography would be familiar with the images and words of Ansel Adams. Davis paraphrases Adams describing two kinds of photographic work in a documentary: assignments from without and assignments from within. The former are for-hire assignments to pay the bills, and the latter are self-assignments to satisfy your inner desire.
 
Davis has done plenty of self-assigned work, much of it on California’s central coast. He agrees with scientists who consider the West Coast the “Serengeti of the Eastern Pacific.” The stretch from his backyard — Monterey Bay to Carmel Bay, points south such as Point Lobos, and the northern reaches of Big Sur — provide constant inspiration. He will venture as far south as Baja California and considers this whole stretch of reef and its adjacent pelagic environment as one interconnected, living organism.  
A massive school of mobula rays (Mobula monkiana) swims in unison approximately 20 feet below the ocean’s surface in the southern Sea of Cortez, several miles north of La Paz, Mexico. Mobula rays form huge schools there between April and July and from November through January. I photographed this image on a dive trip where we encountered these large schools every day, usually early in the morning and again late in the afternoon. While freediving with these amazing creatures, I photographed them from many angles, but I found the dorsal view that accentuated the rays’ winglike repetitive patterns the most captivating. From this point of view, the rays seemed avian, like a beautiful, gentle, and graceful flock of bats. ©CHUCK DAVIS
Davis spends most of his time on any given dive just looking and absorbing the range of light. He doesn’t swim around a lot but finds nice backdrops and waits for a subject to appear, whether it’s a jellyfish or a harbor seal in the kelp. He’s fortunate to live in an area where traditional darkrooms still abound. There seems to be a renaissance of interest in darkroom techniques, and schools are teaching them again. A jazz music aficionado, Davis will spend hours alone in the darkroom with Miles Davis piping through the speakers and only a GraLab timer to measure the passage of time. It is the antithesis of a frenetic digital workflow, and the discipline, craftsmanship, and vision are evident in every print.  

His fine art prints have been in special exhibitions by the Ansel Adams Gallery, the Christopher Bell Collection Gallery, the Center for Photographic Art, and the Brooks Institute. His work is also included in the Mariners’ Museum, and he is the author and photographer of California Reefs published by Chronicle Books. His motion picture credits include filming on several IMAX films, including Ring of Fire (underwater lava scenes), Whales: An Unforgettable Journey, The Greatest Places, Amazing Journeys, and Search for the Great Sharks, and two Academy Award-nominated IMAX films, Alaska: Spirit of the Wild and The Living Sea (underwater/marine scenes of Monterey Bay). You can see Davis’ work at tidalflatsphoto.com.

Categories

 2024
 2023
immersion and bubble formation 2009 232bar 24Hours AGE AIDA Accident management Accidents Acid reflux Acute ailments Adam Sokolski Advanced courses Rescue diver Aerobic exercise After anaesthesia Aged divers Air Ambulance Air Quality Air consumption Air exchange centre Air hose failure Air supply Airway control Air Alert Diver December 2022 Alert Diver Magazine Alert Diver March 2023 Algorithms Alice Cattaneo Alice Modolo Alopecia Alternate Airsources use Alternater Air Source Alternative gas mix Altitude changes Altitude diving Altitude sickness Aluminium Oxide Ama divers Amino acids Amos Nachoum Anaerobic Metabolism Anilao Animal intelligence Animal life Annual renewal Antarctica Anxiety Apea Apex predators Apnea addicts Apnea Apnoea Aqua corps Aquatic creatures Aquatic life Aquatics and Scuba Diving Archaeology Argonaut octopus Argonauts Argon Arrythmia Arterial Gas Embolisms Arterial gas embolism Arthroscopic surgery Aspirin Audible signals Aurel hygiene Australian Flat backed Australia Aviation o2 BCD BHP BLS BOSS400 BWARF Baacterial infections Back adjustment Back pain Back treatment Backextensors Backmount CCR Badages Bag valve mask Bags Bahamas Bail out cylinder Balancing Bandaids Barbell back squat Barometric pressure Barotrauma Barry Skinstad Basic Life Support Basslets Batteries Bazaruto Archipelago Beach entry Beached coral Becky Kaga Schott Becky Kagan Schott Beluga whales Bench press Bends Benguerra Island Benign prostate hyperplasia Benzophenones Beth Neale Beto Vambiane Beyond Standards Big Sur Bilikiki Tours Biophysics Black Water Photography Black Blood flow Blood pressure Blood thinners Blue Desert Blue Wilderness Blue economy Blue heron Bridge Bluff Blurred vision Boat diving Boat etiquette Boat safety Boats Bobbit worm Boesmans gat Boesmansgat Bonaire Bone fractures Bouyancy compensators Bouyancy control device Bouyancy controls Boyle's Law Boyle\'s Law Bradycardia Brain Brandon Cole Breast Cancer Breath Hold Diving Breath hold diver Breath holding Breath hold Breath-hold Breathing Gas Breathing gas contamination Breathing oxygen Breathing Breathold diving Bright Bank Broken bones Bruising Bubble detection Bubbleformation Buddy Exercise Buddy checks Buoyancy Burn wounds Burnshield Burns Business B CCR CE markings CGASA CMAS CNS CO2 COVID-19 Updates COVID-19 COVID CPR CSI Cabin pressure Caissons diseas California Camera equipment Camera settings Cameras Cancer Remission Cancer treatments Cancer Cannabis and diving Cannabis Cape Diver Research Cape Nudibranchs Cape Town Dive Festival Cape Town Dive Sites Cape Town CapeTown Carbon Monoxide Carbon dioxide Cardiac Health Cardiac research Cardiaccompromise Cardio health Cardiological Cardiomyopathy Caribbean Carmel Bay Carribean Conservation Catalina Island Cave Cave diving Cave divers Cave diving Cave exploration Caves Cave Cenotes Ceotes Challenging Environments Chamber Locations Chamber Safety Chamber maintenance Chamber medical staff Chamber science Chamber treatment Chamber Charging batteries Charles' Law Charles\' Law Charles\\\' Law Charles\\\\\\\' Law Charles\\\\\\\\\\\\\\\' Law Charlie Warland Chemotherapy Chest compressions Children diving Chiropractic Chlorophll Chokka Run Christina Mittermeier Christo van Jaarsveld Chuck Davis Chuuk lagoon Citizen Conservation Citizen sciences Citizen science Clean Air Cleaning products Cleeve Robertson Climate change Closed Circuit Rebreathers Closed Circuit Rebreather Clothing Cmmunity partnership Coastal diving Coastalexcursion Cold Water Cold care Cold sores ColdWater Cold Commercial Fishing Commercial diving Commercial operations Commercial schools Common consideration Common understanding Communication Compact Cameras Composition Compressed Air Compressed gas Compressor operators Compressors Concussion Congestive heart Faiture Consercation Conservation Photographer Conservation photography Conservation Contact lenses Contaminants Contaminated air Coping with cold Coral Bleaching event Coral Conservation Coral Reefs Coral Restoration Coral bleaching Coral preservation CoralGroupers Corals Core strength Corona virus Coro Coservation Costamed Chamber Courtactions Cozumel Cradiac valvular Crime scene Cristina Mittermeier Crocodile Crohns disease Crowns Crystal build up Crystallizing hoses Cubs Cutaneous decompression Cutting tools Cylinder Ruptures Cylinder capacity Cylinder handwheel Cylinder safety Cylinder valves Cylinder weight Cylinders DAN Courses DAN Europe DAN Instructor trainer DAN Instructors DAN Profile DAN Researchers DAN Training DAN hotline service DAN instructor DAN insure DAN medics DAN members DAN report DANTraining DCI DCS Decompressions sickness DCS theories DCS DEMP DFA Pro Instructor DFA instructor DM training DNA DPV DReams DSMB Daan verhoeven Dahab Dalton's Law Dalton\'s Law Dalton\\\'s Law Dalton\\\\\\\'s Law Dalton\\\\\\\\\\\\\\\'s Law Danel Wenzel Dangerous Marinelife Dauin island Dave McCowan David Doubilet Dean's Blue Hole Dean\'s Blue Hole Deco dives Decompression Illness Decompression Sickness Decompression Stress Decompression benenfits Decompression chamber Decompression illsnes Decompression ilness Decompression limits Decompression treatment Decompression Decomression sickness Decorator crabs Deep Freediving Deep diving Deep water exploration Deepest SCUBA Dive Delayed Offgassing Dennis Guichard Dental Depth limits Dever Health Diadema Response Team Diagnosis Diaphragms Diets Diopter Dirty water Discomfort Diseases Disinfectants Disinfection Disorientation Distraction Dive Accident Dive Action Dive Buddy Dive Centre Dive Chamber Dive Chmber Dive Computer Dive Destinations Dive Destination Dive Fitness # fit to dive @Dive health Dive H Dive Industry Dive Instruction Dive Instructor Dive Lights Dive Masters Dive Medical Form Dive Medical Dive Practices Dive Professionals Dive Pros Dive Rescue Dive Research Dive Safari Dive Safety Tips Dive South Africa Dive Taiwan Dive Training Dive Travel Wakatobi Dive Travel Dive accidents Dive bell Dive buddies Dive caves Dive centre rules Dive communications Dive computers Dive courses Dive cover Dive cylinder Aluminium Dive equipment Dive excursions Dive exercise Dive exeriences Dive experience Dive fitness Dive gear Dive heallth Dive health Dive in Africa Dive insurance Dive leaders Dive masks Dive medical insurance Dive medicals Dive medicines Dive medicine Dive operators Dive opportunities Dive planning Dive point Dive procedures Dive safety 101 Dive safety briefing Dive safety Dive safe Dive skills Dive staff Dive teams Dive travels DiveLIVE DiveTravel Diveleader training Diveleaders Divelights Diver Ethisc Diver Food Diver Health Diver Profile Diver Travel Diver education Diver infliencers Diver on surface Diver recall Diverover 50 Divers Alert Diversafety Divers Divesites Diveskills Diving Divas Diving Equipment Diving Family Diving Fatalities Diving Feet Diving First Aid Diving Helmets Diving Kids Diving Programs Diving Trauma Diving career Diving emergencies Diving emergency management Diving etiquette Diving fit Diving guidelines Diving history Diving injuries Diving science Diving suspended Diving Dizziness Dizzyness Documentary photography Dolphins Domestic Donating Blood Donation Doug Perrine Dowels Dr Rob Schneider Drift diving Drysuit diving Drysuit valves Drysuits Dur4ban Undersea club Durban Dynamic environment Dyperbaric medicines EAPs EAP EKG EMS EN standards Ear barotrauma Ear pressure Ear wax Ears injuries Eat fish Eco friendly Ecowise Education Electronic Elizabeth Bockheim Embolisms Emergency Action Plan Emergency Planning Emergency action planning Emergency contact Emergency decompression Emergency plans Emergency treatments Emergency underwater Oxygen Recompression Emergency Endurance Entry Envenomations Enviromental Protection Environmental factors Environmental impact Environmental managment Environmental stewardship Equalisation Equalise Equalization Equipment Safety Equipment care Equipment failure Equipment hygiene Equipment inspection Equipment significance Evacuations Evacuation Evaluations Even Breath Evironmetaly friendly Exercise Exercising Exhaustion Exploration dives Exposure Protection Extended divetime Extinction Extinguisher Extreme treatments Eye injuries Eye protection FAQ Face computer Factor V Leiden Failures FalseBay Diving Fatigue Faulty equipment Feet Femal diver Female divers Fenivir Fetus development Field practice Filling stations Fillings Fin Foot Fins Fire Coral Fire Safety Fire extinguisher Firefighting Fires First Aid Equipment First Aid Kit First Aid Trainig First Aid Training First Aid kits First Aid FirstAid Fish Identification Fish Life Fishing Fish Fit to dive Fitness Levels Fitness Training Fitness evaluation Fitness to dive Fitnesstrainng Fitness Flying Focus lights Food Footissues Foundations Fractures Francesca Diaco Francois Burman Fred Buyle Fredive Free Student cover Free diving Free flow Freedive Competition Rules Freedive Competiton Freedive INstructor Freedive Safety Freedive Training Freedive competition Freedive computer Freedive modes Freedive rescue procedures Freediver Staff Instructor Freediver Freedive Freediving Competition Freediving Instructors Freediving performance Freediving Fun Divers Zanzibar Fur rade Galapagos Gar Waterman Gardens of The Queen Gas Density Gas Planning Gas consumption Gas emboli Gas laws Gas management Gas mixes GasPerformance Gasblends Gases Gass bubbles Gastoeusophagus Gastric bypass Gastroenterologist Gas Gear Servicing Genomics Georgina Jones Germs Geyer Bank Giant Kelp Forest Giant Kelp Giant stride Girls that Scba GoDive Gobies Golden fish Gordon Hiles Great White Sharks Green sea turtle Green turles Greenlings Gregory Driessel Guidebook Guinness World Record Gutt irritations HBOT HBO HCV HELP HIRA HMLI HMS Britanica Haemorhoid treatment Hand signals Harry Chammas Havanna Hawaii Hawksbill Hazard Description Hazardous Marine life Hazardous marinelife Head injuries Headaches Health practitioner Healthy Food Heart Attack Heart Health Heart Rate monitor Heart fitness Heart rates Heart rate Heart Heat loss Heat stress Helen Walne Heliox Helium Gas Helium Hematoma Hemodynamic Hepatitis C Hepatitus B Hiatal Hernia High Pressure vessels High pressure hoses High temperatures Hilmar Luckhoff Hip strength Hip surgery Hippocampus History Hole in the heart Hood Hot Human diver Humans Hydrate Hydration Hydrogen Hydroids Hydrostatic pressure Hygiene Hyperbaric Chamber Hyperbaric Oxygen Treatments Hyperbaric Oxygen Hyperbaric research Hyperbaric treatment Hyperbarics Hypertension Hypothermia Hypoxia I-52 found INclusivity IdentiFin Imaging Immersion Immine systems In Water Recompression Increased pressure Indemnity form Indian Ocean Indigo SCuba Indonesia Inert gas Infections Infra red Imaging Inhaca Ocean Alliance Injections Inner ear Instinct Instruction Instructors Insulation Insurance policy Insurance Integrated Physiology International travel International Internship programs Internship Interval training Investigations Irritation Irukandji Syndrome Islamorada Isotta housing Italy Itchy Rash Its OK Jellyfish Jennifer Hayes Jill Heinerth Joanna Wyrebek John Vowles Joint pain Joshua Journal for Technical Diving Junior Open Water Diver KZN South Coast KZN Karen van den Oever Kate Jonker KateJonker Kelp Forest Kelp forests KelpForests Ken Finlay Kenya Kidneys Kids scubadiver Komati Springs KwaZulu Natal Kwazulu-Natal LED lights LED Labour laws Lake Huron Lara Lambiase Laryngospasm Lauren Arthur Leanne Walmsley Learning to dive Leatherbacks Leatherback Legal Network Legal advice Legislation Lembeh Straights Lenses Leslie Lwaney Leukemis Liability Insurance Liability Risks Liability releases Liability Life expectancy Lifestyle Lighting equipment Lighting Lightroom editing Lights Lionfish Live aboard diving Liveaboard Liver Toxicity Liver diseas Liz Louw Llandudno Loss of consciousness Lost at sea Lost divers Low Visability Low blood platelets Low blood pressure Low pressure deterioration Low volume masks Lumpsuckers Lung Irritation Lung flexibility Lung function Lung injuries Lung over expansion Lung squeeze Lung surgery Lung MOD MOzambique diving MPA Macro photography Mafia Island Maintenance Malaria Mammalian Dive Response Mammalian effect Manatees Mandarin Fish Marfan syndrome Marine Biologist Marine Biology Marine Mega fauna Marine Science Marine Scientists Marine conservation Marine parks Marine plants Marinelife Marinescience Mark Barker Markus Dirschi Marlin Marne protecte areas Mask clearing Masks Mask Master scuba diver Matty Smith Mauro Jije Maximum operating depth Medical FAQ Medical Q Medical emergencies Medical forms Medical oxygen Medical questionaire Medical statement Medical team Medicalquestionaires Medicalresearch Medicalstudents Medication Mehgan Heaney-Grier Membership benefits Menopause Menstruation Mental health Mermaid Danii Mesophotic Metotrexate Mexico Michael Aw Micro Photography Microbubbles Middle ear pressure Mike Bartick Military front press Military Misool Resort Raja Ampat Mixed Gas Mnemba Ataol Mono Fins Mooring lines More pressure Mosselbay Motion sickness Motionsickness Mount Kilimanjaro Mozambique Muck Diving Muscle pain Mycobacterium marinum NDL limits NSRI Narcosis National Geographic Nature Nausea Nauticam Ambassadors Nauticam Ambassador Nautilus Navigation Ndibranchs Neck pain Neoprene layers Neuro assessments Neurocognitive research Neurological assessments Neuromotor exercises New Caledonia Nichola Bird Nicorette Nicotine Nitrogen Narcosis Nitrogen build up Nitrox No Decompression Limits No-decompression limits No-decompression Non-nano zinc oxide Non-rebreather Mask Non-smoking Nondiving related illness Nonrebreather masks Normal Air North Sulawesi Northern Taiwan Nosebleeds Nudibranchs Nuno Gomes Nutrition O2 enriched O2 oxygen provider. O2 providers O2 servicing O2 treatments O2treatments OOxygen maintenance Ocean Alliance Ocean Projects Ocean Research Ocean animals Ocean clean up Ocean community Ocean conservation Ocean life Ocean mammals Ocean migrations Ocean pollution Oceangate Ocean Octopus Oil contamination Olive Ridley Open Ocean Open water divers Operatorethics Optical focus Oral contraseptives Orbital implants Oronasal mask Osteonecrosis Otters Out and about Out of air Outer ears Outreach Overhead Envirenments Oxygen Administration Oxygen Cylinder Oxygen Toxicity Oxygen Units Oxygen deficit Oxygen deicit Oxygen dificiency Oxygen ears Oxygen equipment Oxygen explosions Oxygen kit Oxygen masks Oxygen providers Oxygen safety Oxygen supplies Oxygen supply Oxygen systems Oxygen therapy Oxygen treatment Oxygen P J Prinsloo PADI Freedivers PFI PFOs PFO PJP Tech PTSD Paper Nautilus Paralysis Parentalsupervision Part 3 Partner Training Patent foramen ovale PatentForamen Ovale Pemba Island Peri-peri Divers Personal Perspective Petar Denoble Peter Lindholm Philippine Islands Philippines Phillipines Photographers Photographer Photography tips Photography Physical Fitness Physioball Physiology Physiotherapy Pills Pilot Whale Pistons Planning Plastic pollution Plastic Plimsoll Interface Pneumonia Pneumothorax Poison Pole fishing Polka Dot Bat fish Pollution Pool Diving Pool chemicals Pool maintenance Pool workout Pools Post traumatic Post-dive Potuguese man-of-war Pre-dive fitness Pre-dive Predive check Pregnancy Pregnant divers Preparation Prepared diver Press Release Preventions ProDive Port Elizabeth Product scuba nudi Professional rights Protection Provider course Psycological Pulmanologist Pulmonary Barotrauma Pulmonary Bleb Pulmonary Edema Pulmonary Hypertension Pulse Punture wounds Pure Air Pure Apnea Purge Quit Smoking Q RAID South Africa RCAP REEF RMV ROS Radio communications Range of motion Rashes Reactive oxygen species Rebreather diving Rebreatherdive Recces Rechargeable batteries. Rechargeable Recompression chamber Recompression treatment Recompression Recreational dives Recycle Red SEA Reef Chcek Reef Conservation Reef Environmental Education Foundation Reef protection Reef safe Reef surveyors Refractive correction Regal Sea Goddesses Regulator failure Regulators Regulator Remote areas Remote dive locations Remote islands Renewable Rental gear Report incidents Rescue Divers Rescue Procedure Rescue breathing Rescue breaths Rescue diver Rescue skills Rescue skill Rescue training Rescue Researcher profile Research Respitory Minute Volume Resume diving Return To Diving Return to diving Reuseable items Review Rhinopias Risk Assessments Risk assesments Risk assessment Risk elements Risk management Risk mitigation Risks of Seizures River diving Riviera Maya Roatan Marine Park Roatan Ronblom Rubber ducks Ryan Capazorio SABS 019 SAC SMB SRC SafariLive Safe diving practices Safety Concerns Safety Divers Safety Gear Safety Stop Safety in Air Safety SaherSafe Barrier Salisbury Island Salish Seas Salty Wanderer Sanitising Sanne Volja Sara Andreotti Sara Banderby Sara Campbell Sardine Run Sargassum sea Saturation Diving Saturation diver Save our seas Schrimps Science of diving Science Scoliosis Scombroid Poisoning Scorpion Fish Scuba Air Quality Scuba Guru Scuba Injury Scuba Instructor Scuba children Scuba divers Scuba dive Scuba diving Scuba education Scuba gear Scuba health Scubalearners Scubalife Sea Horses Sea Turtles Sea rescue Sea slugs SeaXplore Sodwana SeaXplore Seagrass Sealcolonies Sealife Seals Seasickness Seaweeds Seaweed Sea Self Rescue Send Nudi Shallow Water Blackout Shallow dives Shark Protection Shark Research Shark conservation Shark diving Shark specialist Sharks Shipwrecks Shit Happens Shore entries Shoulder strength Sidemount Sideplank Signalling devices Signs and Symptoms Silty bottoms Sinda da Graça Sit-ups Sixgill Sharks Skills in action Skin Bends Skin outbreak Skin rash Smart phone photography Snells Window Snorkeling Snorkels Social Distancing Sodwana Bay Sodwana Solomon Islands Sonnier bank South Africa Southern Sea Otters SpareAir Special Operations Special forces units Sperm Whales Spinal Bend Spinal bends Spinal cord DCS Spinal dura Spinal pain Spinner dolphins Spleen Splits Sports medicine Squeezes Squid Run Stability exercise Stage cylinder Standars Static breath hold Statin Mediction Stay Fit Stay Warm Steel Stefan Randig Stents Step ups Stephen Frink Stepping up Stobes Stockton Rush Stonetown Stretch band exercise Stretch bands Stretching Strobe Lighting Strobes Stroke Submerge tech Submerged Sudafed Sulawesi Sun protection Sun screen Sunscreen Supplemental oxygen Surface Air Consumption Surface Consumption Rate Surface Marker Buoys Surface supplied Air Surfaced Surfers Surgeries Surgery Survivor Suspension training Swim Fitness Swimmers health SwimmingIn wateractivities Swimming Sylvia Earl Symbiosis Symbiosys TRavel safety Tabata protocol Talya Davidoff Tank valve Tanzania Tara Panton Tattoes Tchnical diving Team Awareness Tec Clark Tec divers Tec diving Tech diving Technical Diving Technical diver Technical divng Temperature Homeostatis The Bends The Cavettes The Produce The Titanic Wreck The Wild Coast The greatest Shoal The silent world The truth Thermal Notions Thermoregulation Thomas Peschak Thresher shark Thunder Bay National Marine Sanctuary Tides Tips and trick Tonga Tooth squeeze Transplants Trashbag Trauma Travel Safe Travel destinations Travel smarter Travel tips Travel Tropical Coastal Management Tulamben Tullum Tulum. Tumbatu Island Tuna Tunnelling Turks and Caicos Turtles Tweezers Tyrone Lubbe Ultrsound Umkomaas Unconscious ascent Unconscious diver Unconsciousness Underground waterways Underground work Underseaa world Underwaater Photos Underwater Photography Underwater Photograper Underwater Photograpgraphy Underwater Photographer Manirelife Underwater Photographers Underwater Research Underwater camera Underwater critters Underwater floral Gardens Underwater hockey Underwater imaging Underwater lights Underwater models Underwater photographer Underwater photography Underwater photos Underwater pho Underwater sound Underwatercommunications Underwater Underwtaer photography University of Stellenbosch Unresponsive Urchins Urinary retention. VGE Vacations Vaccines Vagus nerve Valsalva manoeuvers Valve stem seals Vape Vaping Vasopressors Vasvagal Syncope Venous gas emboli Ventilate Venting Verna van Schak Veterinarian Videography Vincenzo Ferri. Virus infections Volatile fuels WWII wrecks War stories Wash gear Washout treatments Wastewater Watchman device Water Resistance Water Weakness Weck Weigang Xu Weightloss Weights West Papua Western Cape Diving Wet Lenses Wet diving bell Wetsuit fitting Wetsuites Wetsuits Wetsuit White balance Whitetpped Sharks Wide Angle Photos Wide angles Wildlife park Wildlife Winter Wits Underwater Club Wolf Eels Woman and diving Woman in diving Woman's Health Womans health Woman Women In Diving SA Women and Diving Women in Freediving Women in diving Womens Month Womens health Work of Breathing Workout World Deeepst Dive Record World Records Wound dressings Wreck History Wreck divers Wreck dive Wreck diving Wreck exploration Wreckdiving Wrecks Wrist technology Yachts Yoga Youth diver Zandile Ndholvu Zanzibar Zoology Zooplankton \ Blennies abrasion absolute pressure acoustic neuroma excision adverse seas air-cushioned alert diver altitude alveolar walls anemia antibiotics anticoagulants antiseptics ascent bandages barodontalgia bent-over barbell rows bioassays biodiversity bloodcells blue carbon body art breathing air calories burn canal blockage cannabis oil carbon dioxide toxicity cardiovascular career developments cerebrospinal fluid cervical spine checklist chemo port children child chronic obstructive pulmonary disease clearances closed circuit scuba compressed gass coral growth corrective lenses crystalweed currents cuts cylinder filling daggaolie dagga dead lift decompression algorithms decongestants decongestion deep dive training dehydration discovery dive clubs dive injuries dive medicing dive ready child dive reflex dive tribe divecomputers diver in distress diver rescue diver training dive diving attraction diving hoods doctors dolphns domestic travel dri-suits drowning dry mucous membranes dry suits dry e-cigarettes ear spaces earplugs ears elearning electrocardiogram electrolyte imbalance electroytes emergency action plans emergency assessment emergency training environmentally friendly equalising equalizing exposure injuries eyes fEMAL DIVERS fire rescue fish watching fitness Balance fitnes flexible tubing frediving freedivers gas bubble gas poisoning gastric acid gene expression health heartburn heron bridge histidine hospital humidity hypobaric hypoxia immersion and bubble formation immersion pulmonary edema (IPE informal education isopropyl alcohol jaundice join DAN knee lanyard laparoscopic surgery life jackets longevity lower stress lox oxygen level lungs malaise mamalian effect marielife marine pathogens medical Questions medical issues medical procedures medical risk assesment medications mental challenge mental preparedness micro-organisims micro minor illness mucous membranes multilineage dysplasia myelodysplasia nasal steroids nasal near drowning nematocysts neurological newdivers nitrogen bubbles no tanx off-gassed operating theatre operations orthopeadic otitis media out planting outgas pain parameters perforation phillippines phrenic nerve physical challenges pinched nerves plasters pneumoperitoneum polyester-TPU polyether-TPU post dive posture prescription mask preserve prevention professional emergency responders proper equalization psychoactive pulmonary barotrauma. pulmonary injury. pulmunary barotrauma pure oxygen radiation rebreather mask rebreathers retinal detachment risk areas safety stops saturation scissors scuba equipment scuba sea goddesses single use sinus infections situationalawarenes smoking snorkeling. spearfishing spliff sterilising stings strength sub-aquatic sunscreen lotion swimmer's ear swimmer\'s ear swimmers ears tattoo care tecnical diver thermal protection tissue damage toxicity trachea training travel Insurance trimix tympanic membrane unified standards upcycled upwelling virtual coach vision impaired vomiting warmers water quality zinc oxide