The municipality of Cairu is encircled on the one hand by the ocean and on the other by the estuary of the river do Inferno (hell), The island encompasses the villages of Velha Boipeba, Moreré and São Sebastião, the latter also known as Cova da Onça. There is naturally a great diversity of ecosystems, dense forests of the span class='txtorange'>Mata Atlântica, dunes, mangrove, coconut-cultivated beaches and high-value reefs. The Velha Boipeba, the church of Matriz do Divino Espírito Santo date of the beginning of the XVII century. The São Sebastião, the church of São Sebastião, of the beginning of the XX century.