Ko Khai

Ko Khai is a small uninhabited island in Mu Ko Chumphon National Park off the coast of Mueang Chumphon District, Chumphon Province, southern Thailand. Located in the Gulf of Thailand, it is known for its clear shallow waters, fringing coral reefs, and white sandy beaches. The island is a popular day-trip destination for snorkeling and swimming, accessible only by boat, and is valued for its relatively untouched natural environment and marine biodiversity.

Visitors can expect a small, undeveloped tropical island with white sandy beaches, clear shallow water and fringing coral reefs surrounding the island. The interior is covered with vegetation and rocks. There are no permanent structures or accommodation. Access is by long-tail boat or speedboat from mainland piers. Visitors can swim, snorkel over coral, relax on the beach, take photographs and explore the shoreline. The island is typically visited as part of a half-day island-hopping tour within Mu Ko Chumphon National Park.

Ko Khai is part of Mu Ko Chumphon National Park, established in 1989 and expanded in 1999 to protect 40 islands and coastal areas in the Gulf of Thailand off Chumphon Province for conservation of coral reefs and marine ecosystems.