One Ocean Diving

One Ocean Diving was established by marine scientist, shark conservationist, and ethologist Ocean Ramsey alongside award-winning underwater videographer/photographer Juan Oliphant, who collectively bring over five decades of hands-on experience working with sharks. Since launching in 2010, we've maintained a 100% safety record while pioneering Hawaii's first non-caged commercial shark diving experiences and introducing free-diving with sharks to the United States.