"Puente del Inca is a natural bridge located northwest district of Las Cuevas, which has formed over thousands of years by the interaction of extreme temperatures—freezing avalanches and steaming thermal waters. Declared a natural monument, which has been visited by the likes of Charles Darwin, Puente del Inca has five nearby hot springs known for their healing properties. In 1925, the Hotel Puente del Inca was built, each room featuring its own spa; however, it was destroyed by landslides in the sixties and has remained abandoned ever since. Although you can’t bathe in the thermal pools anymore, the striking oxidized rock formations make for a great photo op."