Khao Sok National Park
Khao Sok is a night in a floating raft house with gibbons calling off the karst at dawn and no signal to check. Kayak out after dark and the Milky Way sits over the middle of the lake.
Khao Sok National Park in a nutshell
Khao Sok National Park: what to expect
Before writing this we counted 71,000+ planned stops here on Stippl.
Khao Sok is two places under one name, and booking the wrong one is the mistake to avoid. Khlong Sok village holds the park headquarters, the jungle lodges and the one unguided trail. Cheow Larn Lake, an hour away by road behind its own gate and its own fee, holds the karst towers and the floating raft houses, and it is what the photographs are of. Most travellers give Khao Sok 2 nights on Stippl.
A quarter of people give Khao Sok a single night, which cannot hold the half they came for. 26.5% of Khao Sok stops planned on Stippl are one night, against 43.5% at two. One night buys the village or the lake, and the dawn wildlife safari by longtail, the thing everybody who goes agrees on, leaves from the water at first light.
Give it three nights: one in the village, one on the lake, and one to get back out. The raft house is the point, with karst walls rising from the porch and a kayak at the door, and the longtail into the mist at dawn is where the gibbons are. On the village side the first stretch of the waterfall trail is the park's only unguided walk, and the river runs better for tubing when it is high. Nam Talu Cave is guided all year, closed from June to November, and a serious undertaking rather than a casual one.
Plan Khao Sok National Park in Stippl
Day-by-day planning, stays and budget in one app, with every place from this guide already on the map.
Download the appWho Khao Sok National Park is for
Nature-first travellers
Jungle, karst and a night on the water without island crowds, and most people give it 2 nights to get all three.
Digital-detox seekers
The lake has no reliable signal, and the disconnection is the point rather than a drawback.
Sociable solos and backpackers
Raft houses group strangers into one tour party, and the group tends to become the highlight of the trip.
Softer travellers and families
The riverside lodges and the comfortable end of the village are a real alternative to roughing it, and tours do the logistics door-to-door.
Beginner hikers
The unguided stretch by the headquarters is a wide flat track, and the standard lake walks run one to three hours.
Listeners, not spotters
Gibbon calls at dawn are near-guaranteed; sightings of anything large are not, and it helps to know that going in.
Maybe not for you: anyone needing luxury or a reliably working bathroom at the budget end; light sleepers on a basic raft, with generator noise and an evening power cut; anyone coming for Nam Talu Cave between June and November, when it is closed; and party travellers.
The best time to visit Khao Sok National Park
Dry season
December to April
Accessible trails and easier wildlife spotting as the animals concentrate at water, but the waterfalls run low, river tubing may not run and the lake gets uncomfortably hot from February.
Wet season
May to November
The rainforest at its best, lush and loud, with the Sok River at full spectacle. The costs are closed caves, slippery trails, leeches and open boats in the rain.
- Nam Talu Cave closes from 1 June to 30 November, every year, for flash-flood risk. The park re-announces it each season; the wet-season lake trip is still on, the cave walk is not.
- January is the month most travellers plan Khao Sok for on Stippl, about 72 days ahead. 17.3% of plans are made inside a fortnight, and the raft houses sell out first in the peak.
- The crowd calendar is not the weather calendar. Mid-November to April is high season, July and August are a second one despite the rain, and May to June and September to October are the genuinely quiet windows on the lake.
- The park catches weather off both coasts, so the coastal forecasts are wrong for it. It rains a little most days in every month; showers are short and heavy, and the Sok runs high enough for tubing only in the wet season.
- Rafflesia blooms from January to March, peaking around February, and it is a lottery even then. A guided trek to whichever flower is out is worth booking only in that window.
Add your Khao Sok National Park dates and we'll flag the weather
Stippl shows the season, crowds and prices for every stop on your route.
Describe your trip, get a Khao Sok National Park itinerary in seconds
Everything in this guide is already in Stippl. Tell the planner how long you have and what you like: it builds the route, the days and the travel times, and you edit whatever you want.
Things to do in Khao Sok National Park
A raft house on Cheow Larn Lake
Sleep in a floating bungalow on the lake with the karst towers off your porch and a kayak at the door, the one stop in Thailand people say they would do again. From about €60 a night with meals and the longtail transfer; two nights is better than one.
The dawn safari by longtail
Go out at half past six into the mist between the karsts, with gibbons calling from the walls and hornbills crossing overhead. Included in most raft-house stays, and the strongest hour of the whole park.
Kayaking at first light or after dark
Paddle out from the raft in the first light, or at night for the Milky Way from the middle of the lake. The kayaks are free at most rafts and the water is flat at both hours.
The waterfall trail from headquarters
Walk the first three kilometres from the visitor centre, the park's one unguided trail, a wide track past swimming holes; beyond the ranger checkpoint the jungle route to Than Sawan and Ton Kloi falls needs a guide. About €8 park entry.
The Rafflesia hunt
Trek three to five hours with a guide to whichever of the world's largest flowers is out, from January to March, about €25. It is a lottery even in season and a certain miss outside it.
Tubing or bamboo rafting on the Sok
Float the river on the village side, an hour or two for a few euros, and genuinely better when the river runs high in the rains. The one thing here the wet season improves.
The neighbourhoods of Khao Sok National Park
Khlong Sok village
Highway strip, park gate
The small strip on Highway 401 at the park headquarters: guesthouses, treehouses, restaurants, minimarts and a couple of bars. For first visits; every trail, river trip and lake tour departs from here.
The park gate and every departure on foot, and a highway through the middle.
Sok riverside
Jungle lodges, cicadas, dark
Lodges strung along the Sok River from a kilometre out of the village: quieter, prettier, more comfortable, with the jungle at the balcony. For couples and families who want the forest at night and a ride to the shops.
The jungle outside the room, and a walk or a lift for every meal in the village.
Cheow Larn Lake
Raft houses among karst towers
The reservoir: limestone towers, caves and floating raft houses reached by boat from the Ratchaprapha pier, with no shops, patchy signal and generator power. For the night people come to Khao Sok for.
A night on the water among the towers, and no signal, no shop and no way off till morning.
Ban Ta Khun
Junction town, transfer only
The Highway 401 town that is the public-transport junction for the lake, thirteen kilometres short of the pier, with a market and a few plain hotels. For a late arrival before an early boat, and for nobody else.
The bus stop and a bed before the boat, and nothing to see.
See every Khao Sok National Park neighbourhood on one map
Save the areas you like and Stippl plots your days so you're not crossing the city twice.
Where to stay in Khao Sok National Park
Sleep in Khlong Sok village first, then one night on the lake, then move on: the lake boats leave early, and the village guesthouse keeps your main luggage while you take a day bag. Most people give Khao Sok 2 nights on Stippl, which fits that shape exactly. In high season the bottleneck is boats rather than beds, so book the lake night as a package.
Khlong Sok village
Bamboo bungalows, riverside cabins and a few treehouses, €15 to €45; picky sleepers should book the top end.
Sok riverside
Jungle lodges with a balcony over the river, €40 to €120, a kilometre or more out of the village.
Cheow Larn Lake
Floating raft houses sold as two or three day packages, €60 to €180 per person; shared bathrooms on the basic rafts.
Ban Ta Khun
A few plain hotels and guesthouses near the junction, €12 to €30, for a night before an early bus.
What to eat in Khao Sok National Park
family-style, all-you-can-eat rice, curries, stir-fried vegetables, fresh fruit, and fresh lake fish at dinner; included in every lake package
standard Thai menus from guesthouse restaurants and the village strip; the de-facto dining scene on the HQ side
half-day southern-Thai cooking with a local family or community lodge
Discover food spots in Stippl
Find restaurants and markets on the map, save them to your itinerary, works offline too.
Khao Sok National Park customs and what not to do
A guide is the park's own rule
Beyond the first three kilometres of the HQ trail, and on every cave, lake trail and night walk, a guide is mandatory; the park has prosecuted operators for breaking closures.
Never ride the elephants
Many Khao Sok resorts sell captive-elephant experiences and the sanctuary branding is not evidence of welfare; the no-riding rule applies with force here.
Stay quiet on the safari boat
Noise drives the animals off the shoreline and spoils the trip for everyone on the boat; the guide's hand signal means stop talking now.
Community lodges are real here
Two village-side lodges fund environmental education in the local schools and are run by local guides; they are the stay that puts money where the park is.
English is limited
Villagers and guides booked independently often speak little; a lake tour that advertises an English-speaking guide is worth the difference if you want the forest explained.
Do
- Keep your park ticket on you; it lets a same-day two-zone visit pay once
- Book the boat, not just the bed, for a high-season lake night
- Bring cash for gate fees, the raft-house bar and deposits; nothing on the lake takes cards
- Ask at the visitor centre which trails are open before a wet-season walk
Don't
- Enter Nam Talu Cave between June and November with any operator at any price; it is closed by law and people have died there
- Hike beyond the ranger checkpoint, or anywhere on the lake, without a guide
- Ride elephants or book shows
- Expect to be reachable on the lake; tell people before you go dark
What a Khao Sok National Park trip costs
Track what you actually spend
Set a daily budget per country and log expenses in any currency while you travel.
Fun facts about Khao Sok National Park
The dead trees standing in Cheow Larn Lake are a drowned forest. They were left above the waterline when the Rajjaprabha Dam flooded the valley in 1987, and they have stood there since.
More than half of Cheow Larn Lake lies outside the national park. It sits in the Khlong Saeng and Khlong Yang wildlife sanctuaries, a nuance no guidebook carries.
The karsts are a coral reef from 250 to 300 million years ago. The Permian limestone was lifted into today's towers by the collision of India and Eurasia, which is the story behind the older-than-the-Amazon claim.
The Rafflesia is the floral symbol of Surat Thani province. Its bud takes eight or nine months to mature for a bloom that lasts only days, which is why sightings are a matter of luck.
Cheow Larn Lake covers 185 square kilometres. The electricity authority that owns the dam calls its own reservoir the Guilin of Thailand, and it is the lake in every Khao Sok photograph.
Khao Sok became Thailand's 22nd national park in 1980. It covers 739 square kilometres in Surat Thani province and protects the largest area of virgin forest in the south.
Local tips for Khao Sok National Park
You do not need a car
Khlong Sok village is one of the most bus-and-minivan-accessible places in Thailand; every arrival uses the same Highway 401 junction stop, and onward tickets are bought in the village.
Transfer to the lake pier
Most people who try to reach a same-day lake tour by public transport arrive late; the public leg ends in the village and the pier is an hour on. Book the transfer with the tour.
Late into Surat is stuck
There is no evening minivan to the village. A late arrival at Surat Thani means a taxi for about €40 or a night in town.
How long to stay
Most people give Khao Sok 2 nights on Stippl: one on the lake raft and one in the village, and the lake night is the one that matters.
Nam Talu shuts in the rains
The river cave closes from June to November for flash-flood risk, and people have died in it. It is guided only in any month, as is everything beyond the ranger checkpoint.
The lake has no signal
No calls, no maps and no quick way to summon help; tell people where you are and when you are back. A dry bag for the open boats and leech socks on wet-season trails.
Khao Sok National Park questions, answered
One in Khlong Sok village and one on the lake is the shape most people land on, and a second lake night is the upgrade worth having. Lay the two sides out separately in Stippl, because they are an hour apart on different gates. Then ask people who have stayed on the water, in subreddits like r/ThailandTourism.
It works badly as one. 96.15% of Khao Sok stops planned on Stippl sit in the middle of a route rather than at either end, and the lake is an hour past the village on a separate ticket. A day trip gets you the village trail and none of the water, which is the half people came for.
About sixty kilometres and an hour from Khlong Sok village, behind its own gate and its own fee, and public transport stops thirteen kilometres short of the pier. 22.6% of Thailand trips planned on Stippl include Khao Sok, and almost everything written about it is really about the lake.
A room on a floating platform tied to the karst wall, with a kayak at the door and the lake for a garden. Power runs off a generator for part of the evening and there is no signal, so it is a night off rather than a night away. The dawn safari leaves straight from the raft.
There is no bad season here, only a trade-off. December to April gives dry trails and easier walking. May to October gives you the rainforest doing what a rainforest does, with a fuller river for tubing and the waterfalls at their best. Nam Talu Cave is shut from June to November either way.
Around two months out. Travellers leave 72 days between planning a Khao Sok stop on Stippl and arriving. Raft houses are a small and fixed supply though, so the lake night is worth settling well before the rest of the trip is.
Every guide is written by the Stippl editors and checked against the trips our travellers actually plan. Spotted something out of date? Let us know.
Plan Khao Sok National Park in Stippl
Day-by-day planning, stays and budget in one app, with every place from this guide already on the map.
Download the app