“Over 25 world-class dive sites around Koh Tao, featuring Chumphon Pinnacle (whale shark hotspot), HTMS Sattakut wreck, and Japanese Garden—ideal for snorkeling in crystal-clear water.”
Koh Tao Diving Sites are widely recognized as one of the best and most affordable diving destinations in the world. With underwater visibility averaging 10–30 meters, generally calm seas, and dive sites located around the island, divers can choose locations בהתאם to wind and sea conditions year-round.
Underwater Topography:
Koh Tao offers diverse underwater landscapes, including:
- Pinnacles: such as Chumphon Pinnacle and Southwest Pinnacle, ideal for encountering large schools of fish
- Coral Reefs: including White Rock and Japanese Garden
- Wreck Dives: such as HTMS Sattakut, suitable for Advanced divers and above
- Rock Formations: like Green Rock, featuring caves and swim-through passages
Marine Ecosystem:
The area boasts rich marine biodiversity, with species found throughout the year, including:
- Whale Sharks – most commonly seen from March to June
- Sea Turtles (Green & Hawksbill)
- Large schools of fish such as batfish, barracuda, and mackerel
- Rare species: manta rays, blacktip reef sharks, and colorful nudibranchs
Best Diving Season:
- March – June: Best visibility, highest chance to encounter whale sharks
- July – September: Calm seas, ideal for beginners and diving courses
- October – February: Some waves, but diving is still possible on sheltered sides of the island
Diving Activities & Courses:
Koh Tao is home to many internationally certified dive centers such as PADI and SSI, offering:
- Snorkeling
- Discovery Scuba Diving (introductory dives)
- Open Water / Advanced / Rescue / Divemaster courses
- Specialty courses like Night Dive, Deep Dive, and Underwater Photography
Top Dive Sites:
- Chumphon Pinnacle: Depth 14–35 meters, high chance of spotting whale sharks and dense fish schools
- HTMS Sattakut Wreck: A sunken naval ship at 18–30 meters, ideal for Advanced divers
- White Rock: Popular site for both day dives and night diving
- Japanese Garden: Shallow (2–8 meters), perfect for beginners and underwater photography
- Green Rock: Known for swim-throughs and abundant pufferfish
Traveler Tips:
Always choose dive sites suitable for your certification level and daily sea conditions, and carefully follow the Dive Master’s briefing for maximum safety.
How to Get There
- By boat: Most trips are operated by dive centers via dive boats departing from Mae Haad Pier or Sairee Beach (morning and afternoon schedules)
Travel Tips
- Diving Etiquette: Do not touch marine life or coral, and avoid kicking reefs with fins
- Safety First: Follow the No Fly rule (18–24 hours) after diving
- Gear Recommendation: Use a Dive Computer for accurate depth and time tracking
- Stay Hydrated: Drink plenty of water to prevent fatigue from sun and sea exposure
- Choose Wisely: Select dive sites according to your certification level and follow your Dive Master strictly
Estimated Costs:
- Snorkeling Trip: 600 – 1,000 THB/person
- Fun Dive (certified divers): 1,000 – 2,500 THB/trip
Opening Hours:
- Dive boat departures: 08:00 AM and 01:00 PM
- Best time to dive: 08:00 AM – 12:00 PM
Calm waters and optimal lighting conditions for underwater photography