Ko Sam Sao (Three Island Rock) stands out with its three distinctive limestone peaks, hence the name of the island. Located opposite Mae Ko Island, it is surrounded by clean white sandy beaches and emerald seawater that is clear and calm almost all year round, perfect for relaxing in the heart of nature.

Stone Bridge Landmark:
The main highlight is the natural stone bridge formed by wave erosion into a large arched stone extending into the sea, a popular photo spot on the island. In addition, the underwater area is a source of rich shallow coral reefs, full of anemones and colorful fish, perfect for snorkeling.

Activities and Must-See Views:
Tourists can kayak through the stone arch to admire the beauty from a different perspective or paddle along the limestone cliffs to explore the nature around the island. You can also see the natural sculpture resembling a stone castle on the peak of Mae Ko Island clearly, adding to the prominence of the surrounding scenery.

Experience Camping:
For those who want peace and quiet, Ko Sam Sao has a camping area supervised by the National Park (advance booking required), providing a relaxing experience in nature, the sound of waves, and a starry night sky.

Ko Sam Sao is another destination that combines the beauty of nature, marine activities and tranquility perfectly, suitable for those who want to experience the charm of Ang Thong Islands.

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How to Get There

• Tour Boat: Buy a One Day Trip package (speedboat or large boat) from Koh Samui or Koh Phangan, which will include Ko Sam Sao in the program.

• Chartered Longtail Boat: You can charter a boat from Nathon Pier for those who want privacy.

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Travel Tips

• Best Time to Visit: January – April, the sea is calm, the water is clear, suitable for marine activities.

• Kayaking Time: You should choose a medium tide, you will be able to paddle through the stone bridge most beautifully.

• Hiking Equipment: If you want to go to the viewpoint, you should wear sneakers or shoes suitable for walking because the limestone is quite sharp.

• Nature Conservation: You should use coral-friendly sunscreen (Reef Safe) to reduce the impact on the marine ecosystem.

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Admission Fee:

(Including Ang Thong National Marine Park fee)

• Thai citizens: Adults 40 Baht / Children 20 Baht

• Foreigners: Adults 300 Baht / Children 150 Baht

Opening Hours:

• Open Daily: 08:00 – 16:30
  (According to tour boat schedules)