Gruta do Lago Azul – Mato Grosso do Sul, Brazil, was discovered by a local Indian in 1924. In its interior, after descending 100 meters, it is possible to see the…

Gruta do Lago Azul – Mato Grosso do Sul, Brazil, was discovered by a local Indian in 1924. In its interior, after descending 100 meters, it is possible to see the…
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