The ‘To Sua Ocean Trench’ Is A Gorgeous Natural Swimming Hole In The South Pacific Ocean

The To Sua Ocean Trench is one of two large swimming holes in the south pacific ocean, hidden in the village of Lotofaga on Upolu island in Samoa. Water flows into the deep holes through a lava tube tunnel.

Upolu island was formed by a massive basaltic shield volcano, rising from the sea floor of the Western Pacific Ocean. The island is 434 sq miles in area, with a population of 135,000, making it the most populated of the Samoan Islands.

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