Ao Phang Nga: limestone towers in a shallow emerald bay
Published on 08/25/2026 at 16:05 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Ao Phang Nga in southern Thailand is a marine national park where limestone tower islands rise from a shallow emerald bay between Phuket and the mainland of Phang Nga Province. The bay and its islands form a protected landscape established as a national park in 1981, giving travellers a chance to explore mangrove forests, sea caves and karst cliffs within a single compact area.
Limestone karsts scattered across the Andaman Sea
Ao Phang Nga lies in the Andaman Sea within the Strait of Malacca, occupying part of Phang Nga Bay between Phuket and the Kra Isthmus of southern Thailand.Phang Nga Bay The marine national park covers about 400 km² (155 sq mi), most of it shallow seawater dotted with steep-sided limestone islands.Ao Phang Nga National Park encompasses an area of 400 km² Many of these islands are tower karsts, where vertical cliffs of weathered limestone rise directly from the sea and create a maze of channels and inlets.
The park protects coastal forests and mangrove ecosystems around the bay, along with caves, overhangs and other rock formations carved by water and tides.Ao Phang-Nga was established as a National Park in 1981 and covers an area of 40,000 hectares Limestone cliffs, narrow tidal channels and sheltered lagoons create enclosed pockets of calm water, making the bay accessible by small boats and kayaks rather than long shorelines. In many parts of Ao Phang Nga the sea is only a few metres deep, so the difference between low and high tide strongly shapes the visible coastline.les eaux de la baie sont peu profondes : profondeur de 1 à 4 mètres
A marine national park with protected status
Ao Phang Nga was declared a marine national park in 1981, making it one of Thailand’s sea coast national parks and giving formal protection to its islands and coastal waters.Ao Phang Nga National Park, located in Phang Nga Province, was established in 1981 The protected area includes mangrove forests along the mainland shore, karst islands and sections of shallow bay where coral gardens and tidal flats sit beside steep rock faces.the Park encompasses coastal forests and a series of strikingly scenic karst limestone hills flooded by the sea Within this landscape, the park boundary takes in dozens of named islands, including Ko Tapu and Khao Phing Kan, Ko Panyi and several Hong and Panak islands.
The park’s conservation status extends beyond national designation. Ao Phang Nga is recognised as a wetland of international importance under the Ramsar Convention and is listed as an ASEAN Heritage Park, reflecting its combination of karst geology and extensive mangrove habitats.the park is internationally recognized as a Ramsar Wetland of International Importance and an ASEAN Heritage Park It also appears on the UNESCO World Heritage Tentative List as part of the Andaman Sea Nature Reserves, a cluster of coastal and marine sites along Thailand’s Andaman shoreline.Andaman Sea Nature Reserves on the UNESCO World Heritage Tentative List
Islands, villages and ways to experience the bay
Within Ao Phang Nga National Park there are more than forty limestone islands and islets, many with sheer cliffs and caves reachable by boat at certain tide levels.Huge vertical cliffs frame 42 islands, some with caves Ko Tapu and the nearby Khao Phing Kan form one of the bay’s most photographed rock groups, while islands such as Ko Panyi, Ko Hong, Ko Panak and Ko Lawa Yai each have their own combination of cliffs, small beaches and enclosed lagoons.l'île la plus célèbre de la baie de Phang Nga est l'île de James Bond Khao Phing Kan; on peut aussi citer les îles Panyi et Hong, Raya Ring, Phanak, Boi noi et Lawa Yai Some islands host fishing communities and stilted villages above the water, while others remain largely covered by forest and scrub.
Visitors usually experience Ao Phang Nga as a boat-access landscape rather than a single viewpoint, moving between mangrove-lined channels, open stretches of sea and enclosed lagoons.Phang Nga Bay is a boat-access region explored by longtail boats, speedboats and kayaks Common activities include kayaking into sea caves, visiting floating villages and landing on small beaches beneath cliffs. Throughout the bay, the contrast between vertical rock faces and the flat water surface shapes long views towards Phuket, Krabi and the mainland coast, with the islands forming silhouettes across the shallow sea.
Visiting Ao Phang Nga: what travellers from Western Europe should know
- Ao Phang Nga lies in Phang Nga Province on the Andaman Sea, between the island of Phuket and the mainland of southern Thailand, and boat tours operate from several piers around the bay.
- The terrain consists mainly of shallow seawater, mangrove-lined channels and limestone islands with steep cliffs, so access to viewpoints and caves usually involves travelling by boat and, in some areas, walking on uneven rock surfaces or sand.
- The surroundings include coastal forests, tidal flats and villages such as Ko Panyi, with views across Phang Nga Bay towards Phuket and Krabi when travelling between islands.
- The official language is Thai and the currency is the Thai baht.
- Entry requirements depend on your nationality; UK travellers can check the FCDO travel advice at gov.uk/foreign-travel-advice, Irish travellers the Department of Foreign Affairs at ireland.ie.
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Frequently asked questions about Ao Phang Nga
Where is Ao Phang Nga located?
Ao Phang Nga is in Phang Nga Province in southern Thailand, occupying part of Phang Nga Bay between Phuket and the mainland within the Andaman Sea.
What can travellers expect when visiting Ao Phang Nga?
Travellers encounter a shallow bay filled with limestone tower islands, mangrove forests and tidal channels, usually reached and explored by organised boat trips and small craft.
What makes Ao Phang Nga distinctive compared with other coastal areas?
The combination of vertical limestone karsts, extensive mangroves, Ramsar wetland status and its role as a marine national park gives Ao Phang Nga a strongly defined rock-and-water landscape.
