|Location:||On the Anhumas farm. 260km from Campo Grande, 21km from the village Bonito.|
|Open:||All year daily|
Adults BRL 67, Children (5-11) BRL 7.20, Children (0-4) not allowed.
High Season: Adults BRL 89, Children (5-11) BRL 7.20, Children (0-4) not allowed.
High Season is on Holiday Weekends and school holidays.
|Light:||natural, bring torch|
|Guided tours:||D=90min. V=44,000/a|
|Address:||Gruta do Lago Azul|
|As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
Please check rates and details directly with the companies in question if you need more recent info.
|1924||discovered by the Terena Indians.|
|1978||protected as a Natural Monument.|
|1992||Brasilian and Fench divers discovered 10,000 years old animal bones.|
|2019||35º Congresso Brasileiro de Espeleologia (35º CBE) held in Bonito.|
As the name tells, the most interesting feature of the Gruta do Lago Azul (Blue Lake Cave) is the blue lake it is named after. Every morning, between half past seven and half past nine the sun shines through a hole in the ceiling and the lake gets its typical blue shimmer. The blue colour fills the whole chamber and gives the speleothems a magic touch. The undisturbed surface of the lake mirrors the stalactites, and thus doubles the beauty of the cave.
But the lake is also a prehistoric fossil site. Divers discovered 10,000 years old bones of animals on its ground, the ramains of giant mammals from the Pleistocene era. The found animal species include saber tooth tigers and giant sloths.
The whole area around Bonito is karstified with numerous caves, karst springs and dolines.