Ao Wong Duen
Protected Area
Chonburi Environmental Protected Area
Why dive here
With 54+ marine species recorded in the area - including sea turtles, tiger sharks and pufferfish - Ao Wong Duen offers some of Koh Tao's richest reef diving. Water ranges 29-31°C, warmest April, May, June.
Ao Wong Duen is a sheltered bay on Koh Tao’s west side, an easy spot for newer divers. The maximum depth here is 14 metres, making it ideal for skills practice or relaxed buoyancy work. We often see blue-spotted rays resting on the sand patches and juvenile snapper schooling around the scattered coral bommies. It’s a good choice when you want a calm, straightforward dive.
Typical Ao Wong Duen Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Always perform a 3-minute safety stop at 5m before surfacing.
Nearest Dive Centres to Ao Wong Duen
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INDY FREEDIVE
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Reviews for Ao Wong Duen
Conditions
Ocean conditions, forecast and tides for Ao Wong Duen
Ao Wong Duen Ocean Conditions
Monthly averages for Ao Wong Duen, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (11.17, 101.33) (40km away)
October Averages
Sea Temperature
30°C
86°F · Range: 29.1–31.1°C
Current Speed
7.07 cm/s
Direction: E (98.1°)
Salinity
31.67 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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