The Lourdes Grotto was created under the guidance of a priest named "Erkamp" and parishioners in the year 1958. The grotto, a shrine built into the rocks is located in Seroe Preto, just off the main road to San Nicolas.

A statue of the Virgin Mary, weighing 700 kilos, was hoisted into place in the grotto. Every year, on February 11 (feast of Lady of Lourdes), a procession leaves from the St. Theresita church in San Nicolas to the grotto, where a mass is performed.