Rapu-Rapu and Batan Islands were historically part of Prieto Diaz in Sorsogon.

The Visita (Chapel) here and the spiritual and pastoral needs of the people were taken care of by the Parish Priest of Prieto Diaz.

Majority of the people chose Albay for their province and their will pass respected.

According to the Philippine Statistics Authority, the municipality has a land area of 155.30 square kilometres (59.96 sq mi) [6] constituting 6.03% of the 2,575.77-square-kilometre- (994.51 sq mi) total area of Albay.

The small island of Rapu-Rapu and Batan lie to the east of Luzon and together with the islands of San Miguel and Cagraray, form the northern rim of Albay Gulf.

These islands represents a low monoclinal continuation of the eastern structural arch into the waters of Lagonoy Gulf.

Most of the land surface of Rapu-Rapu has exposed basement-complex rocks in its interior consisting mainly of serpentines.

The months of September, October and November experience the more destructive of these violent tropical storms.

Forty percent of the storms carrying high-velocity winds in the Philippine pass through Southeastern Luzon where Rapu-Rapu is located.