Years later, in 1934, Franzin, owner of some of the land in the area, built a simple bath house (currently known as the "Youth Fountain") in one of the springs where he bathed, the waters of which had a characteristic smell of sulfur. A year later, a group of townspeople bought a lot measuring around the original wood bath house, where they built a health resort. It was composed of twelve masonry bathtubs. In that same year, Octavio Moura Andrade decided to build a spa there, giving it the name of "Caldas de São Pedro", and, along with his brother, Antonio Joaquim de Moura Andrade, established the company "Águas Sulfídricas e Termais de São Pedro S.A." (Saint Peter Thermal and Sulphydric Waters S.A.).