03.26.18 by samuelnixons 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… Advertisements