National park Surat Thani, Thailand

Khao Sok National Park

One of Earth's oldest rainforests, a limestone-studded lake, and wild elephants at the water's edge — see it with a trusted local guide.

In shortKhao Sok National Park protects 739 square kilometers of rainforest in Surat Thani province, on Thailand's southern peninsula between the Andaman and Gulf coasts.

Park size
739 km² (285 sq mi)
Established
1980 — Thailand's 22nd national park
Rainforest age
~160 million years old
Cheow Lan Lake
165 km², formed by the Ratchaprapha Dam (1982–87)
Entry
Included on 4 tours
Typical tour
3 days; 1 day trip

Tours that visit Khao Sok National Park

From half-day jungle treks to a night on a floating bungalow, here's how to actually experience Khao Sok — sorted by how deep into the park you want to go.

About Khao Sok National Park

Khao Sok National Park protects 739 square kilometers of rainforest in Surat Thani province, on Thailand's southern peninsula between the Andaman and Gulf coasts. Geologists estimate the forest itself is around 160 million years old — older than the Amazon and largely untouched by the last Ice Age — which is part of why the canopy here holds such an unusual density of plant and animal life packed into a relatively small area. Limestone karst peaks, some rising past 900 meters, push straight up through the tree line, a legacy of the same tectonic uplift that shaped the Himalayas.

The park splits into two very different halves. Around Khao Sok Village on the western side, trails wind through jungle where langurs, hornbills, and, with luck, wild elephants move through the undergrowth, and the Sok River is calm enough for half-day bamboo rafting or kayaking. About an hour further east, Cheow Lan Lake fills a valley that was flooded in the 1980s when the Ratchaprapha Dam went up — its turquoise water threads between karst islands often compared to Guilin or Halong Bay, with limestone caves and floating bungalows as the only overnight option on the water itself.

Most travelers pick one half or combine both over two to three days: a day of trekking near the village, then a boat transfer out to the lake for a night on a floating raft house. Wildlife sightings are never guaranteed, but early mornings on the lake and dusk on the jungle trails give the best odds — along with a working pair of binoculars.

We operate tours to this amazing place, Picking up/Drop off - anywhere in Thailand! 

Plan your visit

  • Buy your park ticket after 4:30 PM and it's valid through the next day too — useful if you're arriving late in the afternoon.
  • The West Entrance trails get busy with day-tour groups between 10 AM and 2 PM; start before 9 AM or go in the late afternoon for a quieter walk.
  • Guides are mandatory for cave visits (Nam Talu, Coral Cave) and any night safari — these can't be booked independently at the gate.
  • Cheow Lan Lake floating bungalows sell out weeks ahead in December–February; book that leg separately if it's not already bundled into your tour.
  • Bring cash. There's no ATM at the park entrance or on the lake, and most vendors don't take cards.
  • In the rainy season (Jun–Oct), tuck long pants into your socks or wear leech socks on jungle trails.
  • Rafflesia kerrii, the world's largest flower, blooms unpredictably, mostly between December and February — ask your guide about recent sightings rather than counting on it.

Frequently asked questions

Do Khao Sok tours include the national park entrance fee?

Some do and some don't — check each tour's inclusions before booking. Lake tours to Cheow Lan Lake almost always add a separate boat and guide fee on top of park admission.

How many days should I spend at Khao Sok?

A single day covers the jungle trails near the village. To see Cheow Lan Lake properly, plan on at least one overnight in a floating bungalow — the lake is roughly an hour's drive from the village side, so it's not a realistic same-day add-on.

Do I need a guide to visit Khao Sok?

Not for the marked day trails near the village, but yes for the limestone caves and any night trekking — both require a licensed guide under park rules.

Will I see wild elephants or the Rafflesia flower?

Both are possible but never guaranteed. Elephants are most often spotted from the lake at dawn or dusk; Rafflesia kerrii blooms irregularly, mostly December to February.

Is Khao Sok the same as Cheow Lan Lake?

They're both inside the same national park but feel like two different destinations. Khao Sok Village sits at the western entrance with jungle trails and river activities; Cheow Lan Lake is about an hour east, reached by boat, with karst scenery and floating bungalows.

What's the best time of year to visit?

November through April is the dry season — easier trails, more reliable boat trips, and the busiest crowds. May through October brings more rain and leeches on the trails, but also lower prices, greener jungle, and better kayaking on higher water.

How much does a tour of Khao Sok National Park cost?

On TripWays, tours that visit Khao Sok National Park range from $150 to $2,810 per person, and half of them cost $972 or less (prices as of November 12, 2026). Tours of a day or less start at $150; multi-day tours start at $299.

How long are tours that visit Khao Sok National Park?

Half of the tours that visit Khao Sok National Park last 3 days or less. By length: 4 hours to 1 day: 1; 2–3 days: 2; 4–7 days: 1.

Can I cancel a tour of Khao Sok National Park for free?

4 of 4 tours that visit Khao Sok National Park (100%) offer free cancellation. The exact deadline is shown on each tour page before you pay.

Can a solo traveler book a tour of Khao Sok National Park?

Yes: 3 of 4 tours that visit Khao Sok National Park can be booked for one person. The others need a minimum group of two or more travelers, shown on the tour page.

4 tours from $150
See tours