Ihasia Diving Koh Tao

Ihasia Diving is an SSI Instructor Training Center in Chalok Baan Kao in the south of Koh Tao. Staff speak Spanish, Catalan, English and French.

Programs cover scuba courses such as Open Water and Advanced Open Water Diver, snorkel diver, swim, ecology and emergency training. Certified divers can join boat and wreck dives, with air and Nitrox fills and photo and video dives. Regular sites include Sail Rock, Chumphon Pinnacle, Green Rock, Southwest Pinnacle, Twins, Jansom Bay, Shark Island and White Rock.

The centre opens daily from 8.30am to 1pm and 4pm to 7pm, and payment is in cash. It was rated 5.0 from about 1,730 Google reviews in November 2026.