Tham Chao Mai and Tham Chao Khun are among the most distinctive eco-tourism attractions in Kantang District, combining adventure, geology, and mangrove ecology. The journey begins with a boat ride through the lush mangrove forests along Khlong Chorakhe Khao, home to local wildlife such as fiddler crabs, shorebirds, macaques, and various aquatic animals—allowing visitors to experience nature up close from the very start.

The first stop is Tham Chao Mai, a water cave where visitors must enter using a canoe or a small long-tail boat. Inside, the cave is cool, mysterious, and decorated with naturally formed stalactitesandstalagmites that have developed over hundreds of years. Soft natural light filtering in from outside reveals the textures and patterns on the cave walls. Once paddling through the cave to the far side, visitors will emerge into a quiet, pristine mangrove area—often described as feeling like “another world”.

The trip continues to Tham Chao Khun, located on the slope of Khao To Nae. Visitors must disembark and take a short walk uphill to reach the entrance. Inside the dry cave are beautifully shaped stalactitesandstalagmites, some resembling curtains, statues, or natural sculptures. Evidence found within has led researchers to believe that the cave may have once been used as a shelter or dwelling by humans in the past, giving it both natural and historical significance.

Together, these two caves offer a well-rounded experience that blends light adventure, ecological discovery, and geological wonder—perfect for nature lovers or travelers seeking a peaceful, immersive activity that isn’t too strenuous.

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How to Get There

• Travel by boat from Had Yao Pier or Baan Chao Mai Pier

• Use a long-tail boat or kayak to travel along Khlong Chao Mai and Khlong Chorakhe Khao

• Local guides or tour operators are typically required for navigation

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Travel Tips

• Hiring a local guide is recommended for safety and proper navigation

• Wear shoes suitable for trekking and getting wet

• Check tide schedules beforehand, as water levels affect access to the caves

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Entrance Fee:

Fees apply for entering Hat Chao Mai National Park

• Thai citizens: Adults 40 THB | Children 20 THB

• Foreigners: Adults 200 THB | Children 100 THB

Opening Hours:

• Open daily from 08:00–17:00(Access to the caves depends on the sea tide levels)