Phoenix Divers is a beachfront SSI dive school on Sairee Beach, Koh Tao, offering courses from first-time try dives through Open Water, Advanced Adventurer and Rescue Diver, plus professional Divemaster and Instructor training. Small groups, a large dive boat and experienced instructors take divers to Koh Tao's best sites, including White Rock, Chumphon Pinnacle, Sail Rock and the HTMS Sattakut wreck, with a strong track record of whale shark sightings. Beginner packages include equipment rental and dorm accommodation.