Gruta Rei do Mato Belo Horizonte

This is the most interesting of the caves surrounding Belo Horizonte. Near Sete Lagoas, 70km north of Belo, it has prehistoric paintings and petroglyphs. From Belo Horizonte, take any Sete Lagoas–bound bus running along Hwy BR-040 (R$28, 80 minutes, hourly) and ask the driver to drop you at the cave entrance.