Phu Quoc

Phu Quoc National Park protects 31,422 hectares of tropical forest on Phu Quoc Island, Vietnam's largest island, located in the Gulf of Thailand off the southwestern coast of Kien Giang Province. Established in 2001, the park covers approximately 37% of the island's total area and protects primary and secondary tropical rainforest that was historically part of the broader Gulf of Thailand forest ecosystem. Phu Quoc Island has been designated a UNESCO World Biosphere Reserve (as part of the Kien Giang Biosphere Reserve in 2006). The park is increasingly pressured by the island's rapid tourism development, which has transformed Phu Quoc into Vietnam's premier beach resort destination.

The park shelters one of the more intact forest ecosystems in southern Vietnam. The Phu Quoc ridgeback dog, a rare and ancient breed with a characteristic dorsal ridge, is endemic to the island. Monitor lizards, reticulated pythons, and a variety of smaller reptiles inhabit the forest. The slow loris, pig-tailed macaque, and crab-eating macaque are primate residents. Over 200 bird species have been recorded, including several migratory waterfowl that stop on the island. The coastal waters and coral reefs around the national park's marine buffer zone support sea turtles and dugongs.

The park protects a mosaic of tropical moist forest types. Primary evergreen forest covers the central highlands, dominated by trees of the families Dipterocarpaceae and Leguminosae. Semi-evergreen and deciduous forest occurs on drier ridges. Mangrove forests fringe sheltered bays and stream mouths. The forest understory is rich in palms, rattans, and diverse shrubs. Pepper plantations historically surrounded the park boundaries—Phu Quoc pepper is a famous Vietnamese export—creating a sharp transition between cultivated and natural land. Medicinal plants of traditional Vietnamese and Cambodian use are diverse within the forest.

Phu Quoc Island consists of granite and metamorphic basement rocks, part of the ancient Indochina Craton. The island's central spine rises to 603 m at its highest point. The granitic rocks have weathered to produce lateritic red soils with relatively low fertility. Coastal areas feature white sand beaches—formed from eroded and transported quartz—that have made the island famous as a resort destination. The shallow Gulf of Thailand surrounding the island (<50 m depth) has a complex seabed of sand, seagrass, and coral patches. The island was connected to mainland Southeast Asia during the Last Glacial Maximum when sea levels were 120 m lower.

Phu Quoc experiences a tropical monsoon climate. The southwest monsoon (May–October) brings heavy rainfall of 2,500–3,000 mm annually, with rough seas that limit boat access to the western coast. The northeast monsoon (November–April) is the dry season, with calmer seas, clear skies, and temperatures of 25–32°C—this is the peak tourist season. The island's position in the Gulf of Thailand means it is largely sheltered from typhoons, which is unusual for a Vietnamese island and contributes to its appeal as a resort destination.

Phu Quoc has been inhabited by Khmer and Vietnamese fishing communities for centuries. The Nguyen lords and later the Nguyen dynasty claimed the island in the 18th century, and it served as a refuge for Nguyen Anh (later Emperor Gia Long) during his war against the Tay Son dynasty. Under French colonial rule, Phu Quoc gained notoriety for the Phu Quoc Prison (also called 'Coconut Tree Prison'), where thousands of Vietnamese prisoners of war and political prisoners were held during the Vietnam War and earlier conflicts. The prison is now a museum.

Phu Quoc National Park was established in 2001 to protect the island's remaining forest, which at that time faced threats from logging and agricultural conversion. The park's establishment coincided with early tourism development on the island. Since then, the development pressure has accelerated dramatically—Phu Quoc was designated as a Special Economic Zone in 2014, attracting massive investment in luxury resorts, casinos, and infrastructure. The park's boundaries have been tested by development encroachment, and conservationists have raised concerns about illegal deforestation within and adjacent to the park.

The park offers limited but rewarding hiking trails through the forest interior, with the Suoi Da Ban stream and waterfall trail being the most popular. The trail through the forest to Suoi Tranh waterfall passes through excellent bird habitat. Mountain biking and motorbike trails cross sections of the park. The park's coral reefs, accessible by boat from An Thoi port, are among the best snorkeling and diving sites in southern Vietnam. The remote southern An Thoi Archipelago, within the park's marine zone, offers exceptional diving and boat camping.

Phu Quoc is one of Vietnam's best-connected resort destinations—direct international flights from major Asian cities operate to Phu Quoc International Airport. High-speed ferries connect the island to Ha Tien and Rach Gia on the mainland. The southern tourist strip (An Thoi–Duong Dong) has hundreds of hotels, resorts, restaurants, and tour operators. The national park headquarters is in Ganh Dau in the north. Guided hikes and boat tours to the park's islands and reefs depart from An Thoi and Long Beach. The best season is November–April.

Phu Quoc's rapid development has placed enormous pressure on the national park. Deforestation for resort construction and road building has occurred in park buffer zones. Illegal logging and poaching persist. The coral reefs face damage from boat anchoring, tourist snorkeling, and marine pollution from the growing population. Sewage and plastic waste from the tourist industry is a serious environmental concern. The Vietnamese government has committed to stricter enforcement, but balancing conservation with the economic imperatives of Vietnam's fastest-growing tourist destination remains deeply challenging.