Here you can read about the winter camp held in Monte Grigna, in Abisso W Le Donne (11km,-1196m). The expedition discovered and surveyed 770m of new passages. Unfortunately the team was not able to get deeper than around -1100m in the collector at the bottom, because of large amount of water. The expedition lasted from December 26 to January 1, with two participiants underground (!), with large amount of material transported.