Departing from Puerto Bahamondez, catamaran La Quetru tours to Glaciar O'Higgins, an impressive glacier on the Campo Hielo Sur, with drop-offs at Candelario Mansilla (CH$36,000, four hours) for those hiking to Argentina. Its package deal to El Chaltén (CH$75,000) is good value, including boat and transport on the Argentine side of the border. Also sells trekking maps.

The company plans to add a 20-passenger boat that will shorten travel times to Candelario Mansilla.