Great Blue Hole, Belize

Glory Hole of Monticello Dam; United States

Belize Barrier Reef. The Belize Barrier Reef is a series of coral reefs straddling the coast of Belize, roughly 300 meters offshore in the north and 40 kilometers in the south within the country limits. Onne Van der Wal, Corbis #xoBelize

Blue Holes Blue holes are giant and sudden drops in underwater elevationthat get their name from the dark and foreboding blue tone they exhibit when viewed from above in relationship to surrounding waters. They can be hundreds of feet deep and while divers are able to explore some of them they are largely devoid of oxygen that would support sea life due to poor water circulation - leaving them eerily empty. Some blue holes, however, contain ancient fossil remains that have been discovered...

Bali...step outside and take a dip.

Jacob's Well, just outside of Austin. It is one of the longest underwater caves in Texas and an artesian spring.

7 Natural Wonders of the World #7 Victoria falls- Zimbabwe, Africa.

Nemo 33 is the deepest indoor swimming pool in the world.The pool is located in Brussels, Belgium. Its maximum depth is 34.5 metres (113 ft). It contains 2.78787 million litres of non-chlorinated, highly filtered spring water maintained at 30 °C (86 °F) and holds several simulated underwater caves at the 10 metres (33 ft) depth level.

2016 Beebee, Ideas, Adventure, Travel Journals, Vacation, Beach, America Travels

Great Barrier Reef, Australia

Fiji Fiji Fiji Fiji

Dean’s Blue Hole, Bahamas - though this is pretty, it kind of freaks me out. No way I'd swim down into it.

Underwater World.

Lizard Island, Great Barrier Reef, Queensland, Australia

The AquaDom in Berlin, Germany, is a 25 metre tall cylindrical acrylic glass aquarium with built-in transparent elevator.

Salmon Hole (Chico, California) by Youngna Park - 20x200 (from $60)