Founded by marine biologist Ocean Ramsey and underwater photographer Juan Oliphant, One Ocean Diving offers respectful, research-backed encounters with Hawaii’s sharks. Each small-group snorkel is led by a trained scientist who sh...
With an impressive near-perfect rating from thousands of divers, this shark diving operation clearly delivers something special. Reviewers consistently describe their experiences as "amazing" and "incredible," with many admitting they were initially nervous but found the whole adventure surprisingly calm and peaceful. The crew earns praise across the board for being friendly, welcoming, and genuinely passionate about what they do. Names like Matthew, Hayley, Tyler, Liko, Faith, and Kaitlyn pop up repeatedly, with guests appreciating how informative and safety-focused the guides are throughout. The conservation-minded approach resonates strongly with visitors, who love learning about shark protection while experiencing these animals up close. Safety briefings are thorough and detailed, with the company's 17-year perfect safety record putting anxious divers at ease. Multiple guests mention feeling completely safe despite any initial fears, and several have returned for second dives. The comfortable boat and professional handling from start to finish round out what reviewers describe as a dream-come-true, once-in-a-lifetime experience that they'd recommend without hesitation.
Had such an awesome experience with One Ocean Diving! I’d do it 100x over. Everyone was super nice, educational and made me feel safe while diving. Ethan and Faith took awesome photos/videos. I originally didn’t pay for them but really happy I did for the memories
Trace Templeton
May 19, 2026
Had such an awesome experience with One Ocean Diving! I’d do it 100x over. Everyone was super nice, educational and made me feel safe while diving. Ethan and Faith took awesome photos/videos. I originally didn’t pay for them but really happy I did for the memories
Trace Templeton
May 19, 2026