The Church of Our Lady of the Assumption (Nuestra Señora de la Asunción), commonly known as the Santa Maria Church is the parish church of Santa Maria in Ilocos Sur province, Philippines. The church was designated as a UNESCO World Heritage Site on December 11, 1993 as part of the Baroque Churches of the Philippines, a collection of four Baroque Spanish-era churches.
Pinsal Falls, considered as the largest and grandest waterfalls in Ilocos Region, are located in a narrow gorge in Barangay Baballasioan of Santa Maria. Pinsal is a group of plunge and cascades waterfalls falling from a 300-ft wide irregular shaped river ledge the highest of which is a drop of about 85 feet (26 m). Upriver are several smaller falls with their own natural pools. Behind the cascading water of the main falls is a hidden cave where one can swim from. Another tall waterfall is located at the southern ledge.