Continuing Education Whether you’re trying scuba for the first time, becoming a certified diver, adding to your diving abilities, or becoming a dive professional, SDI... Technical Diving TDI is the largest technical certification agency in the world. As one of the first agencies to provide training in mixed gas diving and... Learn to Dive We hire only certified professional instructors with training experience to let you see all diving benefits and joy. Emergency Response Diving We help all applicants who would like to become certified divers and instructors to achieve the best results. Rental We provide the best diving rental services, and including professional cources with modern and secure gear. some facts about what we doLove it. Save it. Dive it. Unlike other modes of diving, which rely either on breath-hold or on breathing gas pumped from the surface, scuba divers carry their own source of breathing gas, usually compressed air,allowing them greater freedom of movement than with an air line or diver’s umbilical and longer underwater endurance than breath-hold. Scuba equipment may be open circuit.