On August 20, 1992, Italian alpinist Hans Kammerlander and Swiss alpine guide Diego Wellig climbed the Matterhorn four times in just 23 hours and 26 minutes. The route they followed was: Zmutt ridge-summit-Hörnli ridge (descent)-Furggen ridge-summit-Lion ridge (descent)-Lion ridge-summit-Hörnli ridge (descent)-Hörnli ridge-summit-Hörnli Hut (descent). However the Italian route (Lion Ridge), was not climbed from Duca degli Abruzzi Refuge at 2802 m, but from Carrel Hut, at 3830 m, both uphill and downhill.