Tham Sai
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Lonely Planet review for Tham Sai
This cave sits at the end of a 280m hillside trail and features a large single cavern filled with stalactites and stalagmites. Be careful of steep drop-offs inside and slippery footings. Usually only the more adventurous types undertake this one. Villagers rent out lamps near the cave mouth. It is just north of Hat Sam Phraya.








