We offer our regular tour, along level walkways, with two optional staircases. Duration: around 45 minutes. We also offer two extreme, wild tours, which feature any combination of the following factors: cave boat tour; wading, and or swimming; climbing; slipping, sliding, stumbling; hands and knees crawls; belly crawls; tortuous, irregular terrain; gooey, sticky clay; soupy, clutching mud, which can suck you down, up to your crotch; exfoliating, heavily, particulated water ; ravine crossings, of indeterminate depths; bear beds; numerous bear claw marks; human remains, in two different locations ( still there ); sites where a sabor tooth tiger, and many prehistoric, short faced bears, were discovered, a half mile back in the cave ; extreme claustrophobic situations. Duration: 3-5 hours