Fern Cave likes to keep its secrets. It features over 15 miles of passage, a 437-foot-deep pit, and 18 distinct levels. Fern Cave is a complex three-dimensional maze of deep pits,...
Fern Cave likes to keep its secrets. It features over 15 miles of passage, a 437-foot-deep pit, and 18 distinct levels. Fern Cave is a complex three-dimensional maze of deep pits,...