Welcome to Extreme Underwater : The source for Technical Diver training in the Pacific Northwest. We are an IANTD and TDI Training Facility located in Vancouver,WA. We are proud to be Oregon and Southern Washington's oldest Technical Diving educator and be among the first to pioneer Technical Diving in the Pacific Northwest.

At Extreme Underwater we offer Diver Training from Nitrox though Tri-Mix as well as Instructor Training and have a complete gas filling station on site offering high pressure Air, Oxygen, Argon, Nitrox and Tri-Mix fills. We pride ourselves on quality Diver and Instructor education and strive to create the safest, most skilled and most knowledgeable diver possible. Please take the time to explore our site and consider us for all of your training needs.