500 Rai Khao Sok Floating Resort — Floating Villas on Cheow Lan Lake Where You Wake Up to Limestone Cliffs
Picture opening your room door in the morning and the first thing you see is sheer limestone karst rising straight out of emerald-green water, nothing around you but lake and ancient rainforest — no road, no phone signal. 500 Rai Khao Sok Floating Resort is a 4-star floating resort moored in the middle of Cheow Lan Lake inside Khao Sok National Park, reachable only by longtail boat. Rooms are floating villas ranging from Deluxe Rooms up to spacious Suites, paired with kayaking, cave tours and wildlife boat safaris. It is an experience you genuinely can't find elsewhere — at a premium price. From approx. ฿11,000/night · scores 8.8 from 62 reviews.
500 Rai Khao Sok Floating Resort sits in the middle of Cheow Lan Lake inside Khao Sok National Park, Ban Ta Khun district, Surat Thani. What sets it apart is that it isn't on land at all — the entire resort is a floating raft, and reaching it means a roughly one-hour longtail-boat ride across the lake from the Ratchaprapha Dam pier. All around you are towering limestone karsts, emerald-green water and rainforest said to be older than the Amazon — an atmosphere many guests describe as "like stepping into a movie."
Rooms are floating villas running from the Deluxe Room (36 sqm) and Villa (42 sqm) up to larger Suites such as the Deluxe Suite (72 sqm), Family Suite (86 sqm) and Honeymoon Suite. Every unit is dressed in warm wood with a private balcony jutting out over the water, so you can step straight from your room into the lake for a swim. Two things to know before booking: the air conditioning runs only during scheduled night-time hours because the resort runs on generator power, and there is "no Wi-Fi and no mobile signal" — a deliberate part of the disconnect-from-the-world concept.
"We jumped straight into the lake from our balcony each morning — nothing around us but mountains and thin mist, so quiet you could hear the hornbills. We've never stayed anywhere that felt like this."
The heart of a stay here is the on-the-water activities. There's kayaking into hidden coves, morning and evening wildlife safaris (good chances of spotting monkeys, hornbills and occasionally wild elephants at the shoreline), the Coral Cave tour, and the sunrise and sunset moments many guests rate as the highlight. There's an outdoor pool right on the lake and a Thai-massage spa to unwind. A point that comes up repeatedly in reviews is that most activities and tours cost extra on top of the room and aren't cheap, so check exactly what your package includes before you travel.
On food, the lakeside restaurant serves both Thai and Western dishes with a stunning water view, and many reviews say the food is better than you'd expect this far out. That said, some guests rate it only "OK," and — importantly — everything carries a price tag: extra drinks and snacks are noticeably pricier than usual, so many people recommend bringing your own snacks and water from the mainland. A cooked-to-order breakfast runs around ฿590 per adult in some packages.
The location is both the selling point and the catch. The resort floats in the middle of Cheow Lan Lake, about an hour by boat from the Ratchaprapha Dam pier, and roughly 2.5–3 hours from Surat Thani town by car plus boat. This is not a place you pop in and out of — you have to plan the trip and book ahead. It scores 8.8 from 62 reviews on Trip.com and 4/5 from 348 reviews on TripAdvisor, ranking near the top of Khao Sok stays with a Travelers' Choice award — excellent numbers for such a niche, experience-led property.
To be straight with you, 500 Rai is not a polished, do-everything 5-star resort, and it doesn't try to be. The recurring disappointments are the high prices for both rooms and activities, AC only at night, no internet or signal, and occasionally slow email replies to booking requests. But if what you're after is one of the most beautiful lake stays in Thailand, genuinely cut off from the outside world, waking up to limestone mountains right in front of you — this gives you something money struggles to buy elsewhere, and nearly every review agrees it's worth doing once in your life.
A tip from following the reviews here closely: stay at least 2 nights, because a single night is mostly eaten up by travel time and many guests say they wished they'd stayed longer. Book direct with the resort or via a package that clearly states which boat transfers, meals and activities are included, so you can control the budget. And come prepared with cash, snacks, water, sunscreen and any personal medication — there's no shop to buy extras in the middle of the lake.
Summary from Booking & Agoda
- ✓ Lake and limestone-mountain views you genuinely can't find elsewhere
- ✓ Peaceful, cut-off atmosphere ideal for couples and a real reset
- ✓ Friendly, attentive staff — many guests praise the warm service
- ✓ Swim, kayak and spot wildlife right from your doorstep
- ! High prices for rooms and activities — everything costs extra
- ! No Wi-Fi and no mobile signal
- ! Air conditioning only runs during scheduled night-time hours
- ✓ A floating-raft stay inside a national park unlike anywhere else
- ✓ Several meals praised as better than expected for somewhere this remote
- ✓ Good chances to spot wildlife — monkeys, hornbills, occasionally elephants
- ✓ Warm wood-trimmed rooms with private balconies over the water
- ! Extra drinks and snacks are pricier than usual
- ! Email replies to booking requests can be slow — confirm ahead
- ! Limited sunbeds by the pool · best enjoyed over at least 2 nights
- 💡If you expect city-luxury comfort and convenience — here the AC runs only at night, there's no Wi-Fi or signal, and everything costs extra → if you need to stay connected and pampered, a floating lake stay like this may not be what you want.
- 💡If you only have one night — the round trip eats up most of it, and many reviews say a single night feels like a waste → set aside at least 2 nights to actually soak up the activities and atmosphere.
- 💡If you're unclear what the package includes — boat transfers, meals and many activities are billed separately, so the all-in cost can be higher than it first looks → confirm the package details with the resort before booking and bring enough cash.