Four expert canoeists who are specialists in white waters and brilliant representatives of high speed kayaking, Oscar Bolfelli, Pietro Berga, Miky Gramaglia AND Francesco Salvato, faced the Travignolo torrent in the Natural Park of Paneveggio in Trantino in the summer of 1987. During the descent they had to overcome difficulties of Vth and VIth degree and a number of demanding passages between narrow gorges through which the torrent runs.