The Acquafraggia waterfalls are located in Borgonuovo di Piuro, a small municipality in Val Bregaglia.

The Acquafraggia torrent originates at Pizzo di Lago, at 3050 m about sea level. As it descends to the valley floor, it passes through two suspended valleys, both of glacial origin, one at an altitude of 2,000 m asl and the other at 1,000 m asl.

Hence, Acquafraggia forms a series of waterfalls, the lowest of which are the most beautiful as they feature a double drop. This explains the name Acqua Fraggia, from "acqua fracta", a torrent that is continuously interrupted by waterfalls.

When Leonardo da Vinci was working for the then Duke of Milan, Ludovico Sforza “The Moor”, he went to Valchiavenna to check the behaviour of the Mera River that, at the time, before flowing into Lake Como, merged with the river Adda, whose navigation features he was already studying.

Su per detto fiume (la Mera) si truova chadute di acqua di 400 braccia le quale fanno belvedere