6 show caves with public tours within 150 miles of Indianapolis. The closest is Bluespring Caverns, about 70 miles away.
Distances are straight-line miles from downtown Indianapolis; driving takes longer. Tour details checked 2026-10-22 against each cave's own site.
A one-hour tour by electric boat along an underground river 5 miles southwest of Bedford, covering 1.25 miles on the water.
Bedford, IN, 53°F inside, from $26
Caves in an Indiana state park: a $3 summer boat tour into Twin Caves, and the dry side of Donaldson Cave that you can explore on your own from Trail 4.
Mitchell, IN, from $3
A cave in Marengo, Indiana with two easy walking tours, the 40-minute Crystal Palace and the 60-minute Dripstone Trail, at 52°F.
Marengo, IN, 52°F inside, from $22.95
A cave near Corydon with year-round guided tours that go about 110 feet down and include an underground boat ride, at around 56°F.
Corydon, IN, 56°F inside
A cave in Mauckport, Indiana with one-hour guided tours, running seven days a week for most of the year.
Mauckport, IN, 54°F inside, from $27.00
A cave 4 miles east of West Liberty with 50-minute tours that change with the season, at a constant 54°F.
West Liberty, OH, 54°F inside, from $25
