Great Blue Hole, #Belize The 1,000-foot wide hole is a sinkhole in the ocean. Geologists believe that an underlying cave system collapsed under increased pressure some 10,000 years ago due to rising sea levels. The dark hole descends 412 feet terminating in lightless depths where a lack of oxygen prevents most forms of life from thriving.
Great Blue Hole, Belize
Secret Arkansas waterfall! This has to be the one of the most unique waterfalls in all the Ozarks. Dismal Creek has literally drilled a hole right through an overhanging bluff. Most times of the year, it is nothing more than a trickle, but after some good rain, this is something spectacular. It is also quite a sight in the winter when the waterfall becomes frozen!This waterfall is located in the Ozark National Forest, between Fallsville and Edwards Junction, south of Boxley Valley.
Glory Hole - Arkansas