Entries by tdisdiHQ

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 enjoy the many treasures the lake held beneath its surface. Here she discovered some favorite […]

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 2009 at the age of 20. Formally trained in corporate identity and branding, information architecture, […]

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: Worldhq@tdisdi.com Web: https://www.tdisdi.com Facebook: www.facebook.com/ SDITDI

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 being a dive leader or having excellent dive skills. Let’s look at being an ERDI […]


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 receive training from the UK’s leading hyperbaric research and treatment charity, while receiving certification from […]

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 responsibilities, experience, team composition and dive goals. And since technical diving is recognized as a […]

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 behind. After surveying a group of Divemasters, we found the top five points DMs agreed […]