Blue Lake Cave

1924200 m deepBrazil

CountryBrazil

RegionMato Grosso do Sul

Discovered1924

Size/Depth200 m deep

About Blue Lake Cave

Contains an underground lake of stunning blue color. The lake is 70 m deep. The cave is carved in dolomite. The blue color comes from sunlight refracting through the water. Swimming is prohibited to preserve the clarity.

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