Please note: current access
- ⚠️ Park rules
Koh Bon has been part of Mu Ko Similan National Park since 1998 (Wikipedia). Similan and Surin: the reopening for the season in October 2026 has been announced. Individual protected spots may stay closed; the park page mentions Koh Tachai and other individual Similan locations, among others. An open park does not mean every island or reef is open.
Checked on 25 October 2026 · Source: TAT Newsroom: The Andaman Opens Its Doors Again (20 October 2026), Asian Trails: Similan and Surin reopening on 15 October 2026, Official DNP page with park restrictions (Thai), en.wikipedia.org: Similan Islands
About Koh Bon
- Access type
- 🤿 Dive site
Mainly for scuba diving; not automatically suitable for snorkelers. - Location
- North of the Similan Islands, Phang Nga.
- Activity
- Mainly diving.
- How you get into the water
- Boat dive; not an ordinary place for snorkeling from the beach.
- Under water
- Reefs, a wall and a protruding ridge where manta rays can appear.
- Good to know
- The current at the ridge can be considerable. Manta rays are never promised, even though the video shows them.
- Access now
- Park and activity-specific restrictions apply; check which spots are open (see the notice below).
More on our site
When to go to Koh Bon
Month by month, following the seasons from our research. Weather, waves, current and tide on the day itself decide whether it works.
Main season: January, February, March, April, November, December.
Andaman Sea: roughly November–April, when the sea is calm more often. Check local weather, tides and park opening separately; the annual park opening and restrictions on individual reefs are two different things.
Source: outthailand.com
Koh Bon on the map
Pinch to zoom; tap a point for more info. Open circles: approximate location.
About the location
8.82702, 97.80055. Approximate location. Point for the island; the dive site with the ridge lies along the edge of the island.
Source of the coordinates: OpenStreetMap: 'เกาะบอน' (Ko Bon, Phang Nga) openstreetmap.org; Wikidata Q49646433 (8.8278, 97.8)
