the antillanca group is a volcanic group of scoria cones, maars and small stratovolcanoes, in chile. casablanca stratovolcano is the tallest volcano of the group, which shelters the antillanca ski resort on its west flank. aguas calientes and puyehue hot springs also form part of this volcanic group. the complex encompasses 380 km² and to the west is bordered by the lakes puyehue and rupanco.