SDI was created by dive professionals from the technical-diving field, which gives the organization a unique perspective, that of teaching recreational diving through the lens of experienced technical diving. SDI’s philosophy is to take recreational scuba diving to new levels, enhancing older, maybe even outdated, diving practices by incorporating new diving technology and emphasizing safety.

Stories by SDI
Avoid Diving Accidents
Training In the Water

Six Ways to Help Avoid Diving Accidents

Most accidents result not from the inherent danger of our sport, but from diver error. Here are a few of the best ways to avoid diving accidents.

Underwater navigation

Underwater Navigation Techniques

Underwater navigation techniques are useful in any number of diving situations. By mastering them not only will you become a safer diver, but you’ll also be able to pinpoint the exact spot where you saw that pygmy seahorse.

dive buddy system

Flaws in the Dive-Buddy System

Can you remember your first open-water scuba class?

New stuff
Cetacean Captivity

Vancouver Votes to Ban Cetacean Captivity at City Aquarium

The Vancouver board of parks and recreation voted in March to ban the importation and display of captive cetaceans at Vancouver Aquarium
by Kathryn Curzon
filmmaker rob stewart

Family of Conservationist and Filmmaker Rob Stewart Files Wrongful Death Lawsuit

The family of recently deceased Canadian conservationist and director Rob Stewart has filed a wrongful death lawsuit
by Kathryn Curzon
Coral Nurseries

Cayman’s Coral Nurseries Thriving With Attention and TLC

The Cayman Coral nursery program launched on Earth Day 2016 with high hopes for success. How is it doing now?
by Guest Author
Wyland tank

Original Wyland Tank Up for Auction

Renowned marine artist Wyland is auctioning off an original painted scuba tank, with the proceeds going to charity.
by Shelley Collett