I spent two days crossing the Andes from Puerto Varas in Chile to Bariloche in Argentina, doing the bus-boat trip known as Cruce Andino, and over-nighting in the hamlet of Peulla. See: http://mytimetotravel.wordpress.com/2012/11/29/bus-boat-bus-boat-day-one/
The first stop after Puerto Varas was the Petrohue falls.
The first stop after Puerto Varas was the Petrohue falls.