Toca da Boa Vista

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Toca da Boa Vista (BA-082) is the longest known cave in the Southern hemisphere. It is located within the municipality of Campo Formoso, 11 km east of the town of Lage dos Negros, in the State of Bahia, Brazil. As of 2007[update] it had over 120 km of mapped passages, which makes it the 13th longest cave in the world. Continued exploration faces typical temperatures of up to 30 Cº.