View the Spectacular Secret World Beneath Weeki Wachee Springs

Far beneath the Mermaids, Buccaneer Bay slides and visitors bustling about enjoying Weeki Wachee Springs State Park lies a vast and mysterious realm few have entered.

Glide silently through sprawling caverns and narrow passageways as if strolling room-to-room in an otherworldly castle. Emerge from narrow cracks to spaces so immense that a parked jetliner would have room to spare. Thanks to the scientists of Karst Underwater Research, we can all gaze at sights that only a handful of specially trained divers have seen personally.

Watch this to Facebook video to learn why entry to the cave system is so challenging and much more.

At about 407 feet, the underwater cave network beneath Weeki Wachee is the deepest natural freshwater cave system in the United States. Watch as divers move through water so pure and clear, they appear suspended in mid-air.

Committed scientists and talented photographers, the Karst Underwater Researcher teams planned, executed and recorded a number of dives beneath Weeki Wachee and its connected Twin Dees Spring.

Join the KUR divers virtually on a recent exploration beneath Weeki Wachee through this and other spectacular video tours.  Videos by Matt Vinzant