Assava Diving Koh Tao | PADI 5* CDC Scuba Diving Centre & Hotel Beach Resort, Thailand

Assava Diving sits in Chalok Baan Kao bay on Koh Tao's quieter southern coast, operating as a PADI 5-Star Career Development Centre — one of the highest certifications a dive facility can hold. The resort brings together scuba instruction, guided dive trips, and on-site hotel accommodation, making it a practical base for both first-time divers pursuing their Open Water certification and experienced divers looking to advance their qualifications or explore Koh Tao's well-regarded reef sites. Guests can expect a focused dive operation within a resort setting that keeps things straightforward and accessible. The combination of accommodation and dive centre under one roof means logistics are simple — equipment, briefings, and departures are all handled on-site. The bay location offers a calmer, less crowded atmosphere compared to the busier northern beaches of Koh Tao, which suits those who prefer a quieter stay alongside their diving. The dive centre operates seven days a week from 08:30 to 18:00, so early check-ins or late arrivals should be factored into planning. Visitors intending to complete a certification course are advised to book in advance, particularly during peak season between December and April when visibility and sea conditions are at their most favourable around the island.