Why TDI / SDI? | Lighthouse Adventure Co.

One-Stop Education Solution

Training with TDI and SDI gives you many options for personal development. Your first scuba course is just the beginning!

With dozens of continuing education opportunities for you to follow, both the recreational and technical courses prepare you to dive safely with confidence and have fun in your local waters or oceans worldwide.

In addition, TDI and SDI offer easy-to-follow educational systems for personal development, and a proven pathway to dive leadership should you desire a career as a dive professional.

Scuba Diving International

Scuba Diving International (SDI) certifications are recognised worldwide, with more than 24 international offices and thousands of SDI facilities and instructors around the world.

SDI is a member of the World Recreational Scuba Training Council (WRSTC) through its regional RSTCs in Europe, Canada and the US. SDI programs are approved by the European Underwater Federation (EUF) and the International Organization Standardization (ISO).

The certifications you earn with SDI will be accepted by dive centers, charter operators, and dive destinations anywhere your adventure may take you!

Technical Diving International

Technical Diving International (TDI) is the largest technical diving agency in the world. Its courses and certifications are recognized everywhere as the gold standard by which others are measured.

The TDI diver training program is straight forward, proven effective and offers divers a comprehensive path from Intro to Tech™ to Advanced Trimix. Formed in 1994, TDI has built a reputation for a complete curriculum that includes cavern to full cave, decompression diving, trimix, and wreck penetration training. Simply put, TDI is a one-stop technical training solution that you will not out-grow.