About Hat Sai Kaew
Hat Sai Kaew, also known as Diamond Beach, is the longest and most popular beach on Ko Samet in Rayong Province, Thailand. Located on the eastern coast of the island within Khao Laem Ya–Mu Ko Samet National Park, it is known for its fine white sand and clear turquoise water. Lined with resorts, restaurants and shops, it serves as the main tourist hub of the island and is accessible by ferry from Ban Phe Pier.
Visitors guide
Visitors can expect a wide, approximately 1 km long stretch of fine white sand on the east coast of Ko Samet with clear shallow water. The beach is lined with resorts, restaurants, bars and souvenir shops. Areas are set with sun loungers and umbrellas. The sea is generally calm for swimming in the dry season, with opportunities for walking along the shore, photography, dining by the beach and evening fire shows. The beach is within a national park and can be crowded, especially on weekends and holidays.
Key highlights
- 01
Longest and most visited beach on Ko Samet with fine white sand
- 02
Clear turquoise water suitable for swimming and wading
- 03
Located within Khao Laem Ya–Mu Ko Samet National Park
- 04
Wide range of beachfront resorts, restaurants and bars
- 05
Sunrise views over the Gulf of Thailand from the east coast
History of Hat Sai Kaew
Hat Sai Kaew is part of Khao Laem Ya–Mu Ko Samet National Park, established on 1 October 1981 to protect the islands and coastline of Rayong. Ko Samet is associated with the classical Thai epic Phra Aphai Mani composed by poet Sunthorn Phu in the early 19th century, which is set on the island.
Culture & Context
The beach and island are culturally linked to Sunthorn Phu, a revered Thai poet, with statues of characters from Phra Aphai Mani found on Ko Samet. The beach is the central social and tourism hub for island visitors and local communities in Phe sub-district.
Route
| By air | Fly to U-Tapao Rayong-Pattaya International Airport (UTP), then road transfer to Ban Phe Pier and boat to Ko Samet |
|---|