Lost River Caverns 44 mi
A cave in Hellertown, Pennsylvania with short 30–45 minute guided walking tours, open daily all year.
Hellertown, PA, from $17.50
6 show caves with public tours within 150 miles of Philadelphia. The closest is Lost River Caverns, about 44 miles away, and 2 are within 60 miles.
Distances are straight-line miles from downtown Philadelphia; driving takes longer. Tour details checked 2026-10-22 against each cave's own site.
A cave in Hellertown, Pennsylvania with short 30–45 minute guided walking tours, open daily all year.
Hellertown, PA, from $17.50
Pennsylvania's first show cave, discovered in 1871, between Allentown and Reading. The one-hour guided tour starts with a film and goes 125 feet down on concrete walks at a constant 54°F.
Kutztown, PA, 54°F inside, from $21
A cave 3 miles west of Hershey with 45-minute guided tours at a steady 52°F, plus a petting zoo, playground and picnic areas.
Hummelstown, PA, 52°F inside, from $24.50
A summer-only cave 50 minutes from State College, at a steady 48°F, closed in winter to protect hibernating bats.
Woodward, PA, 48°F inside
A Maryland cave with tours going down every half hour from 10am to 5pm.
Maryland, from $23
An all-water limestone cavern in central Pennsylvania toured entirely by boat, at a constant 52°F, with a separate farm and wildlife bus tour.
Centre Hall, PA, 52°F inside, from $26.50