Polar Caves Park
A trail through passages formed by huge granite blocks that broke off Hawk's Cliff after the last glaciation; most people take one to two hours. Closed for 2026, reopening spring 2027.
Rumney, NH
Caves in New Hampshire
There is one show cave open to visitors in New Hampshire: Polar Caves Park.
Updated 2026-10-22. 1 of 1 checked in full against official sources.
Questions people ask
How many caves can you tour in New Hampshire?
1 show cave runs public tours. We leave out wild caves that are closed, gated or need a permit.
What should you wear in a cave?
Closed shoes with grip, because paths are often wet. Most caves stay between the high 40s and low 70s °F all year, so a light layer is enough.
Caves in other states
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