Khao Sok National Park

Khao Sok National Park

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Thailand’s Enchanting Rainforest Jewel


Nestled in the heart of southern Thailand, Khao Sok National Park stands as a testament to the country’s natural beauty and ecological diversity. Encompassing an area of over 739 square kilometers (285 square miles), this enchanting rainforest paradise is one of the oldest and most well-preserved national parks in Thailand. Khao Sok’s lush greenery, soaring limestone cliffs, serene lakes, and abundant wildlife create a mesmerizing landscape that beckons nature enthusiasts and adventure seekers from around the world. In this comprehensive guide, we will delve into the wonders of Khao Sok National Park, exploring its history, geography, biodiversity, activities, attractions, accommodations, and everything you need to know for an unforgettable experience in this tropical wonderland.

History and Geography:

Khao Sok National Park was established in 1980, making it one of Thailand’s earliest protected areas. The park is located in Surat Thani Province and encompasses parts of Khlong Sok and Khlong Yee districts. Khao Sok’s origins trace back millions of years, and its limestone karsts and ancient rainforests are believed to be over 160 million years old, making it one of the world’s oldest rainforests.

The park’s diverse topography includes dense evergreen forests, captivating limestone formations, deep valleys, and the stunning Cheow Lan Lake, formed by the construction of the Ratchaprapha Dam.

Biodiversity and Wildlife:

Khao Sok National Park is a treasure trove of biodiversity, housing an incredible array of plant and animal species. The rich ecosystems of the park have earned it recognition as one of the most important centers of biodiversity in Thailand. The dense forests are home to towering dipterocarp trees, exotic ferns, mosses, and rare orchids. The park’s vast array of wildlife includes over 5% of the world’s animal species, making it a haven for wildlife enthusiasts and researchers.

Notably, Khao Sok is renowned for its diverse birdlife, with over 300 bird species documented, including hornbills, trogons, and kingfishers. The park is also home to an array of fascinating mammals, such as dusky langurs, pig-tailed macaques, sun bears, Malayan tapirs, and even elusive cats like clouded leopards and marbled cats.

Activities and Attractions:

Khao Sok National Park offers a wealth of activities that cater to different interests and preferences:

  • Jungle Trekking: Embark on guided jungle treks that lead you through dense rainforests and along scenic trails, where you can encounter rare flora and fauna, as well as hidden waterfalls and ancient trees.
  • Cheow Lan Lake Excursion: Take a boat ride on the emerald-green Cheow Lan Lake, surrounded by majestic limestone cliffs. The lake’s pristine waters are perfect for swimming, kayaking, and exploring hidden caves and pristine islands.
  • Wildlife Spotting: Join a wildlife safari or a night walk with experienced guides to increase your chances of spotting the park’s diverse wildlife, including monkeys, gibbons, hornbills, and even the elusive Asian elephant.
  • Bamboo Rafting: Drift along the tranquil Sok River on traditional bamboo rafts, appreciating the natural beauty of the rainforest and the imposing limestone cliffs.
  • Caving Adventures: Explore fascinating caves such as Nam Talu Cave and Coral Cave, adorned with impressive stalactites and stalagmites, providing an insight into the park’s geological wonders.

Flora and Fauna:

Khao Sok National Park’s remarkable flora and fauna are a testament to its ecological significance. The primary evergreen forests of the park are a rich tapestry of biodiversity, with towering dipterocarp trees and a variety of plant species, including giant bamboo and rattan palms.

The park’s dense foliage provides an ideal habitat for diverse wildlife, including various monkey species like dusky langurs and pig-tailed macaques. Other mammals that call the park home include wild boars, sun bears, and various deer species. Additionally, the elusive clouded leopard and marbled cat add a touch of mystery to the park’s wildlife diversity.

Cheow Lan Lake and Ratchaprapha Dam:

The stunning Cheow Lan Lake, often referred to as the “Guilin of Thailand,” is a central highlight of Khao Sok National Park. Formed by the construction of the Ratchaprapha Dam, the emerald-green lake is encircled by towering limestone cliffs and dense rainforests. The scenic beauty of Cheow Lan Lake is unparalleled, and boat trips and kayaking adventures allow visitors to immerse themselves in this natural wonderland. Unique floating bungalows offer a serene and secluded accommodation option, allowing guests to experience the beauty of the lake in its most tranquil form.


Khao Sok National Park offers various accommodation options, catering to the diverse needs of travelers. From budget-friendly guesthouses and eco-lodges to luxury jungle resorts, there are plenty of choices for every preference. For a more immersive experience, spending a night in a floating bungalow on Cheow Lan Lake is an unforgettable opportunity to connect with nature.

Climate and Best Time to Visit:

Khao Sok enjoys a tropical climate with high humidity throughout the year. The best time to visit is during the dry season, from December to April, when the weather is generally sunny, and the rainfall is minimal. The temperatures during this period are pleasant, making it an ideal time for trekking and outdoor activities.

The rainy season, from May to November, brings lush greenery to the park, but it also means more frequent rainfall, which may lead to occasional trail closures due to muddy conditions.

Sustainable Practices:

Khao Sok National Park is committed to sustainable tourism practices to protect its delicate ecosystems and preserve its natural beauty for future generations. Visitors are encouraged to adhere to park rules, refrain from feeding wildlife, avoid single-use plastics, and participate in eco-friendly activities.

Getting to Khao Sok:

Khao Sok National Park is accessible by various means of transportation:

  • By Air: The nearest airports are Surat Thani and Phuket. From there, visitors can hire private transportation or take buses to reach the park.
  • By Bus: Regular buses operate from major cities like Bangkok, Phuket, Krabi, and Surat Thani to Khao Sok.
  • By Train: Trains from Bangkok and other cities stop at Surat Thani Railway Station, where visitors can continue their journey by bus or taxi.


Khao Sok National Park is a captivating destination that offers a rich tapestry of natural beauty, wildlife, and unforgettable experiences. From trekking through ancient rainforests to cruising on the emerald-green Cheow Lan Lake, the park provides a diverse range of activities that cater to all types of travelers. Immerse yourself in the wonders of this enchanting rainforest jewel and discover the captivating allure of Khao Sok National Park, where nature’s beauty remains untamed and preserved.


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