We've seen some amazing secret beaches in our day, but nothing quite blows the mind like a giant aquamarine swimming hole on a Samoan volcanic island.
To Sua Ocean Trench -- whose name literally means "big hole" -- is a 98-foot-deep hole on the Samoan island of Upolu. Intrepid adventurers descend the steep ladder down into the hole, jump from the wooden platform and swim the aquamarine waters below, through a rock arch and among the fish into what visitors say feels like a movie.
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