The town of Los Baños started as a visita of Bay under the Augustinian order with Nicolas de Tolentino as the titular saint.

[3] After twenty years, the Franciscans established a temporary convent to administer the hot springs that were popular for healing illnesses.

A small hospital chapel was built in 1613 in the absence of a church until 1727 dedicated to the Our Lady of Immaculate Conception, with the title Aguas Santas.

[4][5] The convent and bell tower were destroyed during the 1863 earthquake but repairs were made during the administration of Manuel Rodriguez and Gilberto Martin in 1880.

Some of the miracles includes the wetting of the Virgin’s robes up to the shoulders, amor seco growing from the hems of her garments and mysterious footprints all over the church leading to her altar.