Baños de Agua Santa is a city in Ecuador’s Tungurahua province and a gateway to the nearby Amazon Basin. It’s known for access to trails on the active Tungurahua volcano just south, and for its mineral-rich hot springs. The central Church of Our Lady of Holy Water has paintings depicting miracles attributed to the Virgin Mary. To the east, El Pailón del Diablo and Agoyán are dramatic waterfalls on the Río Pastaza.