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.

March 2025 Features

Page 101 - Diving The Enchanted Raja Ampat- Indonesia
SPECIAL INTEREST | Text byGabriela Guberman

Page 38 - Full-Face Mask Diving
GEAR | Text by Duncan Pattenden

Page 54 - Tropical Kelp Forests
LIFE AQUATIC| Text by Danel Wentzel

Page 86 - Robotic Research To Improve Diving Safety
RESEARCH PROFILE| Text by Madeline Coombs & Frauke Tillmans, PHD
Page 63 - Monitoring Dive Incidents & Drug Use
LOCAL DIVING | Text byCat Harris

Page 31 - Mitsio Island of Madagascar
GEAR | Text byJacques Vieira

Page 108 - Tulamben a Paradise for Underwater Photographers
GEAR | Text by Adam Sokolski

Page 45 - Understanding Oxygen Kit Components 
GEAR | Text byJoAnn Perry, MSE
On the Cover - Photo donated to DAN by Linda Ness: This image is called “Great” - One of my most treasured times out to sea. Every year, a small crew of us spend hours out to sea searching for the elusive Tiger Shark, who cruise into our warm waters in summer, from the North. Cassie Weinberg, Skipper and Owner of Wetu Safaris, had dropped the eight of us off, in the late afternoon and moved away. Tigers are very shy and it takes time for them to appear. Andy, Alex, Tatum, Nats, Spikes, Casey, Tim, It was Nat’s birthday. We floated quietly, roughly in a line downstream of the chum ball and the current. It’s a contemplative time, ocean waiting. Like a meditation, blue staring, snorkel-hollow breathing. As often happens I start to focus closer on tiny gismos in the water, fiddle with the settings on my camera. Aquatech does not give full access to my dials, as Nauticam does, so I have to think more. I shoot full manual most times. I felt the others move somehow, looked up, my eyes adjusted, and my conscious brain took a confused moment to realise I was staring at the profile of a Great White. I don’t recall fear just amazement. We are all experienced freedivers and naturally moved into a circular group, raising a hand to Cas as we would if there was a Tiger arrival. He had no idea for a while. She would cruise past and away, out of sight, then return and repeat. I had the time to take enough images to be able to try a few different settings, each time she came a bit closer. Scratched and gnarly, pied piper of the Remoras, midnight-blue stare, absoluteness. Until it was uncomfortable, and we all realised that the risk for return of spending too much time with this wonderful fish in open water was probably at an end. We called Cas over and quietly decamped from the ocean. We laughed and marvelled and covered faces with hands in disbelief and joy, ate Nat’s birthday cake with salty fingers and all of us would never forget that time, ever.

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.