PSAI

Last updated September 7, 2026

The Professional Scuba Association International traces its roots to Hal Watts' Florida cave-diving school, one of the earliest dedicated cave-training operations in the industry, and has since grown into a broader agency spanning recreational diving through advanced nitrox, trimix, cave, and rebreather certification.

Tec Courses Offered by PSAI

Advanced Nitrox Expedition Trimix Explorer Trimix Extended Range Nitrox Narcosis Management TEAM Trimix Fundamentals Advanced Rebreather Diver Sport Rebreather Diver Apprentice Cave Diver Cave Decompression Diver Cavern Diver Full Cave Diver Intro to Cave Diver Underwater Cave Survey and Cartography Diver Advanced Wreck

Instructors Certified by PSAI

Mexico

Patrick Widmann

Steve Crosby

Dive Centres with PSAI Instructors

Mexico

Protec Mexico

We're still building out the directory country by country, so this list isn't every PSAI instructor or dive centre in the world — more locations are coming soon.

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