Author Archives: tdisdiHQ

“…I Don’t Decompression Dive”

As sport divers cruising the coral reef or seeking out the best site for underwater photography, we tend to lose sight of the fact that we are on-gassing —or absorbing nitrogen into our tissues—as we dive.


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SDI/TDI/ERDI Welcomes Sally McDonnell to the team

Originally from Shelburne, Vermont, Sally enjoyed growing up on the quiet shores of Lake Champlain. While water skiing, fishing and snorkeling filled her days as a youngster, it wasn’t until becoming open water certified that she was able to fully … Continue reading »

SDI/TDI/ERDI Welcomes Joe Coulas to the team

They say the best way to sum up Joe Coulas is by simply calling him a creative. Born and raised in New Jersey, he graduated from Full Sail University with a Bachelor of Science in Digital Arts and Design in … Continue reading »

Rescue Diving

A Few Minutes with Brian, June 2013 Contact SDI TDI and ERDI If you would like more information, please contact our World Headquarters or your Regional Office. Tel: 888.778.9073 | 207.729.4201 Email: Web: Facebook: SDITDI

Cochise County Search and Rescue Volunteer Saves Child

On Saturday May 11, 2013 the Cochise County Sheriff’s Office Search and Rescue Team was at the Salt River east of Scottsdale conducting swift water training. At approximately 1:15 pm, team members were on either side of the river at … Continue reading »

Swift Water Rescue Training for Public Safety Divers

It is important for swift water rescue teams to practice scenarios that they will likely encounter when responding to a mission. It is equally important that swift water rescue teams pay attention to the actions of the public when they … Continue reading »

What’s It Like To Be An ERDI Supervisor?

Well, the short answer is it’s the beginning of professional leadership level in public safety diving. Perhaps comparable to the divemaster level for recreational diving. The reality is, however, that it is much more than that. It’s much more than … Continue reading »


DDRC and SDI are proud to announce that DDRC will now be able to offer SDI certification for CPR, First Aid, Oxygen Admin and AED training courses. The combination of these two organisations means that divers will be able to … Continue reading »

What it Takes to Lead a Technical Diving Team

One of the most interesting dynamics of technical diving, both during its planning and execution, revolves around the issue of leadership. It’s not simply a question of who leads and who follows, but a much more complex balancing act between … Continue reading »

Think Like a Divemaster

The Divemaster (DM) is the individual primarily responsible for supervising the activities of certified divers, both above and below the water. People often wonder how DMs lead divers around the reefs and wrecks without getting lost or worse, leaving someone … Continue reading »