Crystal Cave is a cave near Kutztown in Berks County, Pennsylvania, United States, the heart of Pennsylvania Dutch Country. It was found by William Merkel and John Gehret in 1871. Greenwich Township farmer Samuel D. F. Kohler bought 47 acres (190,000 m2) of land, including the cave, for $5,000 in 1872. The next year he began charging 25 cents admission. The cave was used, at one time, for crop storage and dances were held in the largest room.