Numerous streams tumble over the cliffs into the sound in fine cascades.
Última Esperanza Sound (Last Hope Sound) is an inlet stretching from the mouth of Eberhard Fjord to the outskirts of Monte Balmaceda, within the Magallanes Basin. This inlet, known within Chile as Seno Última Esperanza, has the characteristics of a tidewater river and drains an extensive basin. It receives the waters of almost all the surface waters of Torres del Paine National Park through the Serrano River. The sound occupies a valley carved by glacial action.1
Last Hope Sound along with the Señoret Channel forms a navigation route, which connects Puerto Natales with several protected areas of the region. The Turbio River is a tributary to the Ultima Esperanza Sound.
Bailey Willis (1914) Argentina Dirección General de Ferrocarriles Nacionales, Argentina Comisión de Estudios Hidrológicos,Northern Patagonia: Character and Resources, Scribner press, 464 pages
C. Michael Hogan, Cueva del Milodon, Megalithic Portal, 13 April, 2008 [1]