1. Dean's Blue Hole in Bahamas: World's Deepest Blue Hole

Dean's Blue Hole near Clarence Town on Long Island, Bahamas, is the world's deepest known "blue hole" - a term given to any deep, water filled, vertical caves or sinkholes with an entrance below the water surface. While most blue holes and sinkholes

2. Devil's Pool: Swimming on the Edge of the Victoria Falls

The Devil's Pool, a small lagoon, enclosed by rocks, on the edge of Victoria Falls, located along the Zambezi River on the border of Zambia and Zimbabwe. 
Devil's Pool is a rocky depression on the edge of the Victoria Falls, located along th

3. To sua Pool, Samoa

To Sua Ocean Trench on the island of Upolu in Lotofaga, Samoa. Tosua means a "Gigantic Swimming Hole". It is believed that lava field blow holes making thees tide pools and walking paths along the shore and near the ocean's edge. it is about 30 mete

4. Natural Pool Giola in Thassos Island, Greece

Amazing Natural Swimming Pool in Giola, Thassos, Greece. Giola Thassos is a stunning natural lagoon, like a swimming pool fixed into the rocks. The water is slightly warmer than the sea, which makes it enjoyable for swimming.

5. Jacob's Well in Wimberley, Texas, USA

Jacob's Well is one of the most significant natural geologic treasures in the Texas Hill Country. Jacob's Well has been integral to the cultural and historical character of the Wimberley Valley. The location has been a beloved swimming hole for generation