As stalactites drip from above and stalagmites rise from the floor, the caves found below the surface of Bermuda create an otherworldly wonder for kids. Discovered by two young boys in 1907, Crystal Cave has a 50-foot-deep subterranean lake full of crystal clear water. A bridge leads explorers across it while a lighting system allows guests to view the intricate patterns of the crystallized formations and calcite mineral deposits adorning the walls. Located on property with Crystal Cave, Fantasy Cave is the smaller of the two. Guided tours take travelers through both of these mysterious caves, where knowledgeable guides share facts on the history and geology of the impressive formations.