Lost River Caverns

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726 Durham St
Hellertown, PA 18055
Explore Nature's Underground Wonderland.

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4.085 reviews
Photo of Matthew L.
Matthew L.
11/28/2025

Lost River Caverns is a natural limestone cavern and tourist attraction located in Hellertown, Pennsylvania that has been forming for 250,000 years. Consisting of five chambers, the caverns were...

Photo of Jim R.
Jim R.
5/20/2025

The gift shop was fairly large with the usual collection of stuff but in addition had a large collection of various rocks and gem stones for sale. Our cave guide was enthusiastic and knew her...

William K.
10/26/2025

Wow--what a cool place! The Lost River Caverns in Hellertown are an absolute must -- this underground world is full of mystery and natural beauty. You get to walk through paved, well-lit pathways...

Photo of Crystal P.
Crystal P.
9/15/2025

I always thought it'd be a different cavern as our first family cavern experience since we're from NY but I was happy it was this one. We really loved the history and seeing everything. I'd...

Photo of Mark H.
Mark H.
1/11/2025

A reasonably priced, brief, and extremely educational activity to explore a cavern. What a great opportunity to have in the Lehigh Valley. The tour guides are highly informative and engaging which...

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