H2JO Diving ARZON View slideshow Share on Facebook Share on Twitter Home » detail » H2JO Diving Sports nautiques Welcome to H2JO diving, the diving center which offers to help you discover the beauty of the seabed of the Gulf of Morbihan! Whether you are an experienced diver or a beginner, our team of state-certified professional instructors will be happy to help you discover the exceptional fauna and flora of our “Little Sea”. Dives in the Gulf of Morbihan are among the most beautiful in Brittany, and our diving groups can observe the underwater life thriving in the Jument current. From first-time diving in the protected depths of Long Island for beginners to "real drifting" for the most experienced, through training at all levels, the H2JO diving center guarantees you unforgettable dives in complete safety, always with the joy of sharing our passion! Open from April to November. Read more Close Pricing Means of payment Features Languages spoken Services/equipment services Borne de recharge véhicule électrique equipement Parking autres Plongée Opening periods From 01 April 2025 to 15 November 2025