Florida is home to an underwater cave system that attracts divers, yet this is one of the most dangerous sites in the world.
Devil's Den is an underground spring inside a karst window — a cave formed by the collapse of the ground, exposing the water below. Located 25 miles south of Gainesville, it's one of Florida's ...
Kids can be particularly curious about where water comes from ... 360° Video: Explore Florida caves in this online experience here.