Tham Thara Wasan

Tham Thara Wasan is a limestone cave inside Si Satchanalai National Park, about 1.5 kilometres from the park headquarters in Ban Kaeng subdistrict, Sukhothai province. It isn’t a standalone free attraction — because it sits within the national park boundary, visitors pay the park’s standard gate fee (200 THB for foreign adults, 40 THB for Thai adults, half that for children) rather than a separate cave ticket, and that fee covers the rest of the park’s trails and waterfalls too.

The walk in starts from the same trailhead used for Tat Duean waterfall; the path splits after a short stretch, with the cave route branching off to one side. Inside, the draw is straightforward limestone scenery — stalactites and stalagmites built up over a long span of time, and a stream running through part of the system that adds the sound of moving water to the walk. This is a natural cave rather than a cave-temple, so visitors expecting shrines and Buddha images at every turn should recalibrate: it’s geology first, not a pilgrimage site.

Insider Tip: Bring your own flashlight or headlamp. There’s no interior lighting installed, and phone torches drain fast in cool, damp conditions.

Watch out: The approach trail and cave floor can get slippery, especially after rain, and there’s no staff stationed inside the cave itself — go with at least one other person and let someone know your plan if you’re heading in outside of a tour group.

Combine the visit with Si Satchanalai National Park itself, since your gate fee already covers it, and consider Namtok Tat Duean if you want a waterfall stop on the same trail system. Wear shoes with real grip rather than sandals, and treat this as a half-day nature stop rather than a quick add-on to Si Satchanalai’s historical park ruins across town.