Sight Search

Alert Diver
MAGAZINE

Alert Diver is the dive industry’s leading publication. Featuring DAN’s core content of dive safety, research, education and medical information, each issue is a must-read reference, archived and shared by passionate scuba enthusiasts. In addition, Alert Diver showcases fascinating dive destinations and marine environmental topics through images from the world’s greatest underwater photographers and stories from the most experienced and eloquent dive journalists in the business.

Q3 2026 Features

Page 24 - The Great White Was There!
Text by Bryan Hart

Page 43 -Scuba Operator Choice
Text by Christo van Jaarsveld

Page 55 - Spearfishing Safety
Text by Tamsyn Signe

Page 66 - The Safety Paradox
Text by Emmanuel Dugrenot
Page 86 - Creating Careers In Diving
Text by Alyssa Mitchell

Page 106 - Mangroves of Madagascar
Text by Gabriela Guberman

Page 120 - Sogod Bay
Text by Eliel Alfon

On the Cover - Photo donated to DAN by Bryan Hart

Equipment Used: Canon EOS-1D X Mark II in a Nauticam housing; Tokina fisheye lens at 15 mm; pair of Ikelite DS160 strobes; 9-inch Zen glass dome port.
 
Location: 
Aliwal Shoal (Shark Park at 5pm - Sunset), KwaZulu-Natal, South Africa

Chasing the Setting Sun! Capturing a close-focus wide-angle shark portrait against the colours of the setting sun requires many elements to come together. These distinctive “over-under” images of Aliwal Shoal’s blacktip sharks are created using a large dome port positioned half above and half below the surface. It may look effortless, but almost everything is working against the photographer. The sharks are constantly moving—and often extremely close to the housing. The light is fading quickly, while bubbles and water droplets cling to the dome and can easily render an image unusable. Balancing the exposure above the surface with the shark below requires careful control of the ISO, aperture, shutter speed, strobe power and strobe positioning. It pushes both the camera setup and the photographer to the limit. A disciplined routine is essential: wipe the dome with a gloved hand, shoot a burst, review the images, adjust the camera and strobe settings—and repeat before the light disappears.

Dive Emergency Hotline
CALL FOR ASSISTANCE

+27 828 10 60 10

DAN's Emergency Hotline staff members are on call 24 hours a day, 365 days a year, to provide information, assist with care coordination and evacuation assistance.