Samui

Koh Samui, commonly known simply as Samui, is a tropical island in the Gulf of Thailand and part of Surat Thani Province. It is the second-largest island in Thailand, covering about 247 square kilometers, with a population in the tens of thousands. The island is administered as a full district (amphoe) of Surat Thani.

Geography and environment

Samui features a hilly interior with dense coconut plantations and a coastline lined with palm-fringed beaches. The climate is tropical, with a wet season roughly from May to October and a drier period from December to April. The interior remains largely forested, and several coastal coves and bays attract visitors and wildlife alike.

Transportation and connectivity

The island is served by Samui International Airport, providing several domestic and some international flights. Ferry and boat connections link Samui to the mainland at Don Sak and to other nearby islands, while Nathon serves as the island’s administrative center and main port. Roads on the island connect major beaches and towns, with Chaweng and Lamai among the most developed tourist areas.

Economy and tourism

Tourism is the dominant economic activity, supported by a growing hospitality sector, restaurants, and services. Agriculture—particularly coconuts and rubber—has historically been important, though its share of the economy has declined with the rise in tourism.

Attractions

Popular areas include Chaweng and Lamai beaches, as well as landmarks such as the Big Buddha (Wat Phra Yai) and the rock formations Hin Ta and Hin Yai near Lamai. Nearby Ang Thong National Marine Park offers sailing, kayaking, and snorkeling opportunities. The origin of the name “Samui” is uncertain, with theories suggesting historical Malay or local roots.