and drapery rock formations like Frozen Niagara. The wonder was discovered in 1923, when the cave's early owners, who were already operating underground tours for tourists, pushed deeper into the ...

The fossilized remains of a newly discovered ancient shark species found in the depths of Kentucky’s Mammoth Cave National Park reveal not the sharp, pointy gnashers you’d associate with Hollywood’s ...

The other wave is The Rock, the section that breaks in front of the namesake Cave Rock. The tubes are probably even rounder here, but the bottom is shallow and gnarly. Most of the Cave Rock waves ...