Koh Samet is a 6 km national-park island 200 km southeast of Bangkok - close enough for a long weekend, far enough to feel like a proper escape. The national park designation (entry fee: ฿200 for foreigners) has kept high-rise hotels and large-scale development off the island. What you get instead is bungalow operations and small hotels strung down the east coast from the main pier at Na Dan southward. The further south, the quieter.
Hat Sai Kaew: the main beach
Hat Sai Kaew (Diamond Beach) is Koh Samet’s widest stretch of sand - about 1 km, 10 minutes from the Na Dan pier. Fine white quartz sand, clear water, and the most resort infrastructure on the island. It is also the busiest beach, particularly on long weekends. For most first-time visitors it is the natural base: convenient, sociable, and with the widest range of accommodation.
Mid-range (approximately ฿1,800–4,500/night as of 2026):
Samed Cabana Resort - A pool resort on the main beach with sea-view rooms and central location for the Hat Sai Kaew strip. From approximately ฿1,800/night.
Samed Pavilion Resort - A more polished option on the main beach: well-appointed rooms, a pool, and a beachfront restaurant. The natural step up from the standard bungalow operations nearby. From approximately ฿2,200/night.
Ao Hin Khok and Ao Phai: quieter and social
The next two bays south of Hat Sai Kaew are narrower and considerably more relaxed. Both have budget and mid-range bungalow options, good snorkelling from the rocky points between them, and a younger backpacker atmosphere without the main-beach weekend crowds.
Budget (approximately ฿600–1,400/night as of 2026):
Naga Bungalows (Ao Hin Khok) - Budget bungalows alongside the well-known Naga Bar, with a social evening atmosphere and accessible snorkelling. Fan-cooled rooms. From approximately ฿700/night.
Ao Phai Hut (Ao Phai) - Simple bungalows directly on the beach. The most affordable option for direct beach frontage in the mid-island area. From approximately ฿600/night.
Malibu Garden Resort (Ao Phai) - Fan and air-con rooms available, direct beach access on a quieter bay than Hat Sai Kaew. Consistently recommended as the most reliable mid-range budget option in this area. From approximately ฿800/night.
Ao Wong Duan: calm, mid-island
Tropical beach with palms and beachfront bungalows.
Ao Wong Duan is a popular bay mid-island with clearer water than the northern beaches at peak season. A mix of longtail arrivals and walk-ins; calmer at weekends than Hat Sai Kaew.
Vongduern Villa - A resort on this quieter bay with good beach access and a relaxed setting. From approximately ฿2,000/night.
Ao Phutsa (Ao Tub Tim): families
A small, quiet bay mid-island with a gentle beach, basic bungalows, and shallow, clear water well-suited for younger swimmers. Limited facilities.
Ao Wai and Ao Kiu: maximum seclusion
city koh samet.
The furthest accessible beaches. Ao Wai has limited accommodation and no road access - arrive by longtail from Na Dan (฿50–80). Ao Kiu at the southern tip is the most pristine beach on the island with no overnight accommodation; visited by day-trip longtail only.
Luxury
Paradee Resort (Ao Kiu) - 40 villas on Koh Samet’s most secluded beach at the island’s far south. The only property qualifying as a genuine luxury resort: private beach, full-service spa, resort speedboat connecting guests to Na Dan pier. The national park restrictions that have limited development everywhere else make this the sole option at this tier. From approximately ฿8,000/night as of 2026.
Le Vimarn Cottages & Spa (Ao Phrao, west coast) - A spa resort facing away from the main beach activity, accessible by longtail from Na Dan or the main beach. From approximately ฿5,500/night.
Practical notes
National park fee: ฿200 per person, collected at Na Dan pier on arrival. Keep the receipt - it may be checked at interior checkpoints.
Cash: ATMs at Na Dan and Hat Sai Kaew run out on long weekends when Bangkok visitors arrive in numbers. Bring sufficient baht for your full stay.
Weekdays vs weekends: The difference is significant. Plan mid-week if you want a quiet island experience.
Getting around: Songthaews from Na Dan to Hat Sai Kaew and south (฿30–80). Motorbike taxis run the main track. Longtail boats connect beaches along the coast (฿50–100 per trip).
For snorkelling trips and island circuits, browse Koh Samet tours and activities. For the full island guide see Koh Samet travel guide.