Offshore flooded caves, so-called ocean blue holes, are extensions of the ... “It’s like going over a waterfall—there’s no escape.” Keeping his distance, a diver sets up equipment ...

Ohio's Hocking Hills is teeming with fast-flowing waterfalls and steep-sided gorges. Whether exploring ancient caves or abseiling down cliffs, visitors can anticipate a trip brimming with adventure.

Sheltered under the rocky cave ceilings ... trail through the old quarry down to the falls, which flow off a rocky overhang into an enticing blue-green pool deep enough to swim in the warmer ...

The gorge curves up and around the 15 meter (49 foot) waterfall, creating an almost cave-like atmosphere. With the jagged, open cave top and the cliff walls surrounding the vibrantly green-blue ...