There's a whole world waiting for you.  Beautiful coral reefs, amazing sea creatures, and awe inspiring landscapes are just the beginning. Explore caves, mysterious ship wrecks and learn about underwater habitats first hand. With Under H2O, you'll gain the skills necessary to safely travel the world’s most amazing underwater environments both abroad and right here in the Pacific NW!

Under H20 provides the high-quality, safest SCUBA instruction in Basic Open Water Courses (NAUI Certification), Advanced Open Water, and NITROX in the Portland area.  Whatever your underwater adventure requires, Under H2O can get you ready.