The gorge near Ponte Alto has attracted inhabitants and tourists from the city of Trento since the 1800s. The so called “Orrido” is a deep canyon, carved by the River Fersina over thousands of years. Here, in the 1500s some of the oldest hydraulic works in the world were built, in order to protect the city from floods. Two weirs give rise to magnificent 40 m high waterfalls that flow through red rocks, thus creating spectacular light effects.