Bluespring Caverns
Over 50 smaller streams contained in 18+ miles of known passages combine in the main river passage to create America's longest navigable underground river. Living in the miles of flowing streams are rare blind cavefish and blind crayfish. Passengers on the custom electric tour boats can usually sight some of these unusual creatures as they float though the winding passages.
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Ruby Falls
This massive underground waterfall has been a family favorite for travelers for over 85 years.
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