Please note: current access
- ⛔ Closed or restricted
Restriction: the official park page announces a closure for snorkeling and water activities at the reef in front of Koh Kradan from 15 May 2026, with no end date. The research found no reliable confirmation that this closure has been lifted. This is separate from the annual closure of the island.
Checked on 25 October 2026 · Source: Official DNP page with park restrictions (Thai)
About Koh Kradan: east house reef and Ao Niang
- Access type
- ⚠️ Restricted or uncertain access
Do not assume you can freely snorkel here right now; check first whether it is allowed (again). - Location
- Trang; Hat Chao Mai National Park.
- Activity
- Formerly snorkeling from the beach; now restricted.
- How you get into the water
- The reef can physically be reached from the beach, but do not assume it is currently allowed.
- Under water
- Traditionally a well-known place for coral and fish from the shore. At Ao Niang, sources describe a reef within swimming distance.
- Good to know
- Do not assume that Ao Niang falls outside the restriction. The video does not prove that it is currently allowed.
- Access now
- Restriction announced by the park authority; no confirmed lifting found.
When to go to Koh Kradan: east house reef and Ao Niang
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
Photos of Koh Kradan: east house reef and Ao Niang
Sandy beach on Koh Kradan Photo: Krzysztof Golik · CC BY-SA 4.0 · Wikimedia Commons 
View from the beach on Koh Kradan Photo: Krzysztof Golik · CC BY-SA 4.0 · Wikimedia Commons 
Koh Kradan in Hat Chao Mai National Park Photo: Marcin Konsek · CC BY-SA 4.0 · Wikimedia Commons
Koh Kradan: east house reef and Ao Niang on the map
Pinch to zoom; tap a point for more info. Open circles: approximate location.
About the location
7.31297, 99.25680 · Ao Niang: 7.30205, 99.25809. Approximate location. Point on the east beach; Ao Niang lies about 1 km further south.
Source of the coordinates: OpenStreetMap: 'หาดเกาะกระดาน' (east beach) openstreetmap.org; Ao Niang openstreetmap.org (7.30205, 99.25809)
