One ocean One breath is a freedive, photo and video partnership between husband and wife Eusebio and Christina Saenz de Santamaria. They are professional freedivers and record-holders, adventure freediving photographers, filmmakers and ocean lovers. As PDN award-winning photographers, their work has featured on the Discovery Channel, National Geographic, CBS TV, The Guardian, Men's Fitness, GEO, Qantas Magazine and many more. They are based on the small tropical island of Koh Tao in Thailand where they train and coach, however they spend many months of the year travelling, shooting and filming as well as aiming for new depths and records in the sport of freediving. In September of 2014, the couple achieved a world's first and world record together in a Tandem Variable Weight dive to a depth of 100 metres.