7To Sua Ocean Trench

Visitors will locate the To Sua Ocean Trench, situated in Samoa, on the island’s Main South Coast Road.

The stunning attraction features “a unique land formation consisting of two giant holes joined via an ancient lava tube cave.” One of these holes is To Sua Ocean Trench, a 30-meter-deep (98.4 feet) swimming hole that features turquoise waters, lush greenery surrounds, and access via a ladder.