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Seno Otway is a large inland sound lying between Brunswick Peninsula and Riesco Island in southern Chile. Alternatively called Otway Sound, this natural waterway occupies a valley blocked by a large terminal moraine left by the retreat of a glacier during the last glacial period.^[1] In spite of being located east of the Andes, it is connected to the open Pacific Ocean through the Strait of Magellan via a narrow passage, which cuts into the Andean Massif. Seno Otway also is hydrologically connected with Seno Skyring by the Fitzroy Channel.

There are a variety of marine species within the Otway Sound, as well as along the coastal terrestrial and intertidal zones. Notably there is a moderately large colony of the Magellanic penguin along the coast of the Seno Otway.^[2]

Not to be confused with Otway Bay at the west entrance of the Abra Channel.

• Fjords and channels of Chile

• United States Geological Survey (USGS) P 1386-I Chile and Argentina - Wet Andes: Past Glaciation [1] accessdate=2008-01-29
• C. Michael Hogan (2008) Magellanic Penguin, GlobalTwitcher.com, ed. N. Stromberg [2]

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52°53′S 71°07′W / 52.883°S 71.117°W / -52.883; -71.117

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