Ang Thong National Marine Park

Ang Thong National Marine Park
Name	Ang Thong National Marine Park
Native name	อุทยานแห่งชาติหมู่เกาะอ่างทอง
Location	Gulf of Thailand; Surat Thani Province, Thailand
Nearest city	Koh Samui
Area km2	102
Established	1980
Governing body	Department of National Parks, Wildlife and Plant Conservation

Ang Thong National Marine Park is an archipelagic protected area in the Gulf of Thailand encompassing dozens of limestone islands, lagoons, and beaches. The park lies off the coast of Surat Thani Province near Koh Samui and Koh Phangan, attracting attention from international scientists, tourists, and conservation organizations. It is administered by the Department of National Parks, Wildlife and Plant Conservation and figures prominently in regional marine conservation planning with input from agencies such as the UNEP and IUCN.

Geography

The archipelago consists of 42 islands clustered in the Gulf of Thailand south of Surat Thani and west of Koh Phangan, featuring karst topography similar to Phang Nga Bay, Krabi and Phi Phi Islands. Major islands include Ko Wao (often called Ko Wai), Ko Mae Ko, and Ko Phaluai which display features comparable to those found in Similan Islands and Mu Ko Chang National Park. Topographical variety ranges from sheer cliffs like those at Railay to sheltered lagoons like the "Emerald Lake" on Ko Mae Ko, reminiscent of cenotes in Yucatán Peninsula. The park's maritime boundaries adjoin the shipping lanes used to reach Koh Samui Airport and the ferry routes connecting Surat Thani Province to Phuket and Trang Province.

History and establishment

The islands have a recorded history of navigation and fishing by communities from Surat Thani, Nakhon Si Thammarat, and Chumphon provinces, with earlier cartographic mentions by Ruy López de Villalobos-era maps and regional trade routes linking to Ayutthaya Kingdom and Srivijaya. Modern recognition grew in the 20th century through surveys by the Royal Thai Navy and scientific expeditions by institutions such as Chulalongkorn University and Mahidol University. Conservation designation followed international trends after the Convention on Biological Diversity negotiations and precedents set by Khao Yai National Park and Mu Ko Similan National Park. The area was officially declared a national marine park in 1980 under the authority of the National Park Act (1961) and managed by the Department of National Parks, Wildlife and Plant Conservation, aligning with policies influenced by Ramsar Convention dialogues and bilateral cooperation with Japan International Cooperation Agency on coastal management.

Biodiversity and ecosystems

The park supports coral reef habitats similar to those surveyed around Koh Tao, with reef-building corals in genera documented by researchers from Prince of Songkla University and Thai Fisheries Department. Seagrass beds host species comparable to observations in Sundarbans and Coral Triangle studies, and mangrove stands share floristic elements with those in Ranong and Krabi. Fauna includes marine mammals such as records of Indo-Pacific humpback dolphin and migratory Cetacean sightings aligned with patterns observed near Andaman Sea populations. Reptiles and bird species mirror island assemblages reported on Ko Lanta and Similan Islands National Park, and invertebrate diversity, including nudibranchs and crustaceans, has been cataloged alongside work by the Southeast Asian Fisheries Development Center and Smithsonian Tropical Research Institute collaborations. The park’s ecosystems contribute to regional carbon sequestration studies comparable to those in Mangrove Action Project inventories.

Tourism and recreation

Ang Thong is a destination featured in regional guidebooks alongside Koh Phi Phi, Phuket, and Koh Samui, popular for snorkeling, diving, kayaking, and scenic viewpoints such as the overlook on Ko Wao's ridge. Day trips operate from harbours at Bangrak Pier and Nathon Pier and are run by operators with ties to tour networks servicing Chaweng Beach and Haad Rin. Visitor activities connect to recreation trends promoted by Tourism Authority of Thailand and were influenced by exposure from films and media similar to the tourism spikes after The Beach (film) and features in National Geographic. Ecotourism best practices from agencies like WWF and Conservation International have been adopted by some operators to reduce impacts comparable to management changes in Galápagos Islands tourism.

Conservation and management

Management integrates patrols, zoning, and monitoring programs developed with input from IUCN and regional academic partners including Kasetsart University and Prince of Songkla University. Threats include coral bleaching events linked to global warming noted by IPCC assessments, overfishing patterns similar to those documented by the Food and Agriculture Organization in Southeast Asia, and damage from unregulated tourism paralleling issues faced by Boracay and Palawan. Enforcement draws on legal frameworks related to the National Park Act (1961) and collaborations with agencies such as the Royal Thai Police marine units and Department of Marine and Coastal Resources. Restoration initiatives have included coral transplant trials inspired by methods used in Great Barrier Reef and community-based fisheries management models developed in partnership with USAID and regional NGOs like Seacology.

Access and facilities

Access is primarily by speedboat and longtail boat from ferry terminals servicing Koh Samui and Koh Phangan, with passenger flows coordinated through harbours like Bangrak and Thong Sala. On-island facilities are limited: ranger stations, basic moorings, marked trails, and designated camping areas managed by the Department of National Parks, Wildlife and Plant Conservation; nearby accommodations range from guesthouses in Nathon to resorts in Chaweng and service infrastructure connected to Samui International Airport. Safety and visitation regulations reference standards used by international parks such as Yosemite National Park and Acadia National Park for visitor management, while scientific access is facilitated through permits issued to institutions such as Mahidol University and international research centers including James Cook University.

Category:National parks of Thailand Category:Marine parks