Agua Caliente Park Tucson

Agua Caliente Regional Park is a Pima County natural area in Tucson, Arizona, where warm sulphurous spring water has fed an oasis of palm trees, cattail marshes, and wildlife habitat since prehistoric times, known to the Hohokam people as a reliable water source in the Sonoran Desert long before European settlement of the region. The sulphurous thermal water emerging at temperatures around 30°C carries mineral compounds that create a distinctive desert oasis ecosystem supporting migratory birds, aquatic species, and lush riparian vegetation rare in the arid surroundings of the Santa Catalina Mountain foothills. Today managed as a public regional park, Agua Caliente preserves a living connection to Tucson's pre-colonial past while offering residents and visitors a rare experience of thermal spring bathing within a functioning desert wetland ecosystem of genuine ecological and cultural significance.