The Cisnes River (Spanish for swan) is a river located in the Aysén del General Carlos Ibáñez del Campo Region of the Chilean Patagonia. It runs in east-west direction from the mountains near the border to Argentina and empties into the Pacific Ocean, near the town of Puerto Cisnes at Puyuhuapi Channel. Its characteristic turquoise-blue color is due to the glacial sediments deposited in it. Moro River and Pinchado River are some of the major tributaries of the river.
Cisnes river has a Mediterranean continental climate with warm summers (Dsb, according to the Köppen climate classification), since at least 4 months have an average temperature above 10 ðC (50 ðF) and at least one month has an average temperature below 0 ðC (32 ðF), using the threshold of -3 ðC its climate would be Mediterranean subalpine (Csc).