Samoa's To Sua Ocean Trench, its name literally means “big hole,” may just be the most magical place to soak up the sun.
The crystal clear swimming pool formed after the islands' volcanoes erupted and the ground gave away to this 98-foot deep hole on the Samoan island of Upolu. Currently, the pool is fed by a series of canals and tunnels with water from the South Pacific Ocean.
Feeling adventurous? Take a leap into the salt water pool from halfway down the staircase or use the diving board at the bottom. The swimming hole is 90 feet in depth and ready for your cannonballs.
If you're planning a visit, follow the small, faded sign from the village of Lotofaga and prepare to pay a small fee to enter the trench (proceeds go to protecting the area and keeping all trails safe for visitors).