Koh Samet National Park
Bangkok's nearest fine white sand island — Koh Samet's silica-rich beach glitters uniquely, just 3 hours from the capital within a national park.
About this Place
Koh Samet is Rayong's most popular island and the closest beach escape from Bangkok — just 220km and 3 hours by bus and ferry. The island's powdery fine white sand (caused by its high silica content, which locals say the sand glitters) is the finest in the Gulf of Thailand and noticeably different from other beaches. Koh Samet is a national park so development is theoretically limited, though popular Hat Sai Kaew (Diamond Beach) and Ao Wong Duan are well-served with mid-range resorts. More remote southern coves — Ao Wai, Ao Kiu — require walking or longtail boat transfers and reward with far more solitude. The island has good snorkelling in the clearer months (Dec–Mar). Being a national park, an entry fee applies (foreigners 200 THB). Popular with Bangkok weekenders, the island is busy Thai holiday weekends — visit midweek for a dramatically quieter experience.
Location
12.5780, 101.4525
More Nearby Locations
The ferry town gateway to Koh Samet — a working fishing port with morning boat markets, excellent fresh seafood, and the best fish sauce and shrimp paste in Thailand.
Seven-tiered waterfalls, wild elephants, gibbons, and rare pheasants inland from Rayong coast — one of eastern Thailand's most rewarding undiscovered parks.
A government marine research centre with sea turtle rehabilitation — watch rescued turtles recover and learn about Gulf of Thailand marine conservation.
A free army-administered beach backed by pine forest — calm, clean, and shaded by trees, this eastern Gulf gem is entirely unknown to foreign tourists.
Nearby Guides
- Best Beaches in Rayong: Hat Mae Ram Phueng, Laem Mae Phim & the Eastern Seaboard
- Rayong Fruit Orchards & Farm Visits: Durian, Rambutan & Thailand's Fruit Belt
- Koh Samet Island Guide: Rayong's White-Sand Paradise in the Gulf of Thailand
- Rayong Seafood Markets & Coastal Cuisine: Thailand's Eastern Gulf at Your Table