Why are Prerequisites Important in Technical Diver Training?

Prerequisites can be found in the Standards and Procedures for any course you are interested in taking.


Warrior Transition Unit Scuba Camp

The camp saw over 30 soldiers participate in Scuba Discovery and some of those warriors completed their confined water skills. These soldiers suffer from various wounds; from PTSD; bullet/shrapnel; back, hip, leg injuries; and some with TBI’s.


Vancouver’s First Major Artificial Reef

by Rick Wall – Director, Communications – The Artificial Reef Society of British Columbia:
HMCS AnnapolisVancouver BC, 12 May 2015. The Artificial Reef Society of British Columbia (ARSBC) successfully completed its latest project on 4 April, 2015 when the former Canadian warship ANNAPOLIS was finally sunk in the Halkett Bay Marine Provincial Park, creating the first major artificial reef in the Vancouver area.

Since 1989, the ARSBC has sunk more ships to create marine habitat than any other non-profit group in the world. The ANNAPOLIS Project which started in 2008 with the purchase of the former HMCS Annapolis (110 metre helicopter-carrying destroyer-escort) from the Canadian Government turned out, however, to be the most complicated and controversial project ever undertaken by the Reef Society. Financial issues, changing federal government regulations, emerging environmental concerns and legal challenges all forced the Project timelines and costs to be extended. In the end, the work to prepare ANNAPOLIS took almost seven years to complete, involving more than 1,000 volunteers from the local dive community and consuming almost 20,000 person-hours. Once all the federal permits had been issued and legal challenges put aside, a six-week window was identified to complete all the final preparations for the sinking. A dedicated team of specialists agreed to come onboard and complete this work, which included:

  • Detailed surveying of the ship to assess the stability of the ship;
  • Identifying locations for explosive charges;
  • Identifying requirements for venting arrangements;
  • Mapping diver access arrangements;
  • Preparing towing arrangements for moving the ship to the sink site;
  • Preparing anchoring arrangements at the sink site to ensure accurate positioning of the ship; and
  • Ensuring safety for all spectators.

annapolisThree days before the sink day, the ship was moved to Halkett Bay and positioned over the small shelf that had been designated as her new home and final preparations completed. With tide conditions deemed optimal, an air horn sounded and the bay echoed as fourteen charges were detonated in the ship. Two minutes later, all that could be seen was a cloud of smoke hanging over the water where ANNAPOLIS had been floating. Society President Howie Robins commented:

“This was by far the best executed sinking operation for the Reef Society. Divers are already enjoying the experience”.

Divers started visiting the ship on 6 April, after it had been inspected by the safety divers. To date it is estimated that 95% of the ship`s interior has been explored. Here are some common comments that have come back to us (courtesy of Sea Dragon Charters):

“The Annapolis sits perfectly upright on the bottom at about 105 feet. This is great as it allows for extra bottom time compared to some of the other artificial reefs in BC”

“The Annapolis has a multitude of swim-throughs – all at various deck levels. This is exciting, even if you are not wreck certified. You can safely see inside the wreck without entering”

From Deirdre Forbes McCracken, owner of Ocean Quest Dive Centre, who has made two dives to the ship:

“On our second trip back to the ship, the school shiner perch had grown to be several hundred! Tiny shrimp now hopped along the exterior decks of the ships in numbers far too great to count! On our first dive out, other teams of divers had reported seeing red rock crabs at the base of the stern, and now we find more crabs taking up residence [in the operations room]! In just a few weeks to see so many creatures already finding this new reef home was a very rewarding and emotional moment!”

ANNAPOLIS is the most comprehensively prepared naval ship in the ARSBC fleet of artificial reefs and has been designed for the enjoyment of divers of all skill levels. Equally importantly, though, is that after only one month ANNAPOLIS has already begun its transformation to a viable marine habitat.


This project was truly a team effort, involving a large number of people, without whom it would never had been completed. In addition to the long hours put in by the volunteers from the local dive community in preparing the ship for the various environmental inspections, additional thanks must go out to those specialists who contributed both their time and unique expertise in executing a text-book perfect conclusion to a long and complicated endeavor. Those companies include:

Crosby Marine Services, Gibsons, BC
Reliant Marine Services, Gibsons, BC
Mountain Towing and Recovery, Maple Ridge, BC
Pacific Blasting and Demolition Ltd, Burnaby, BC
Damet Services Ltd, DeWinton, AB
Accurate Energetic Systems, LLC, McEwen, TN
Dyno Nobel Industrial and Mining Explosives Manufacturing
Artificial Reefs International, Key West, FL
Derek W. Davis, Inc. Naval Architect, Victoria, BC
Seaspan Marine Corp, North Vancouver, BC
Sea Dragon Charters, West Vancouver, BC

See photo and video footage here:
Article & aerial pictures
CTV Newscast – 4 Apr 15

Rick Wall – Director, Communications
The Artificial Reef Society of British Columbia
c/o Vancouver Maritime Museum
1905 Ogden Avenue
Vancouver B.C. V6J 1A3
Web site:

Open Water Scuba Diver eLearning Now Available in New Languages

open water translations
Over the last year, we have focused our attention on growing the SDI/TDI/ERDI global brand, increasing our translations to include Spanish, German, and Portuguese. We are proud to announce that our SDI Open Water Scuba Diver eLearning Program is now available in ALL three languages. You can follow the steps below to choose your preferred language, and proceed to your eLearning course. You can change your language at any time during an eLearning course. You can do one chapter in Spanish, and then switch back to English or German, if you prefer.

We have also included a tutorial video that walks you through how to change languages and then register a new user.

Step 1: Go to our website,

Step 2: Once at the site, locate the dropdown menu indicating the language.

top menu

Step 3: Click on the dropdown, choose the language you want to use.

language dropdown

Step 4: Enjoy!


Step 5:


Dear SDI/TDI/ERDI VIP Instructors

PSI Letter

Dear SDI/TDI/ERDI VIP Instructors,

As many of you know, this past year we re-wrote and re-designed our Visual Inspection Program for cylinders. This was done in large part because our old materials had become outdated and needed to be revised. The launch of the new program and materials has been one of the most successful we have ever had, mainly due to the use of a new media platform, eLearning, to supplement classroom training for the program.

Unfortunately another organization, PSI/PCI, who had a perceived monopoly on cylinder inspection training, does not like this competition. As a result, they are sending out the attached letter to any SDI/TDI/ERDI Member who has taken our course and is also a PSI/PCI Instructor, removing them from their organization. SDI/TDI/ERDI has never taken the position that if you train with another organization you can’t be a member of ours. As a matter of fact, we openly encourage members to be a part of many training organizations. This is because it keeps us honest and forces us to improve our materials and earn your business every day.

It is unfortunate that PSI/PCI has taken this position, as the organization has done a lot of great things for the industry over the years. Bill High is an innovator, and a person for whom I have a great deal of respect.

We will continue to openly encourage our members to look to other organizations, PSI/PCI included, to find the materials and support that they deserve. If another organization can do something better than us, it is our responsibility to improve so that we can earn your business back. That is the beauty of a competitive market place.

If you are interested in our programs, or have concerns about the letters you may be receiving, feel free to contact us directly and we will assist in any way we can. If you have not had a chance to see our new cylinder inspection manual or eLearning course, please contact us, we will be happy to send you a sample.

In the meantime, keep up the excellent training!


Brian Carney –



P.S. Our cylinder inspection programs are recognized by the USDOT, CGA, and cylinder manufacturers. In addition, the training course is fully insured, and the policy negotiated directly, with Lloyds of London.