Rio Simpson: It is probably the most famous river in the Aysén region; the Rio Simpson tends to fish like classic Montana freestone and has significant caddis and mayfly opportunities. Browns and rainbows from 14-22 inches are your usual catch. However, trout up to 30 inches have been caught on a fly. King Salmon run this river from early January through mid March. We’ve taken Kings from the Simpson that push 45+ pounds. Our Lodge is located right on the SimpsonRiver banks, then on top of enjoying the most gorgeous views of the Simpson river with the Andes peaks as a background, you will be able to finish a great drifting day right at the lodge,where the Pisco ours will be waiting for you.
Rio Paloma: The Rio Paloma is a river that begins in Desierto lake and runs northwest until it meets the Rio Desague about 15 miles away. A glacial freestone flows iridescent blue water and provides fantastic dry fly and streamer action. Predominantly a brown trout fishery, the introduction of rainbows in the late nineties has proven to be a success. Fish from 14-23 inches are taken from the crystal, clear Paloma. We generally drift at the Paloma River. 
Rio Azul:
Located between Lago Azul and Lago Desierto, the Rio Azul is accessible by boat as it gets you into a remote area. Flowing beneath the shadows of Cerro Castillo, it is probably one of the world’s most beautiful fishing locations. Browns from 17-21 inches are quite common with larger fish to be taken. Jet boats take you to and from the Rio Azul, however, we prefer to wade once we arrive.
Rio Desague:
The Rio Desague drains Lago Elizalde and runs for about five miles until it enters Lago Caro. Within this short stretch of river are browns and rainbows 17-23 inches with many larger trophies lurking in its depths. Jet boats will run into this remote river for some spectacular scenery and dry fly fishing.
Rio Emperador Guillermo:
It is one of the jewels of the area, there are many pools and riffles loaded with hungry trout, overaging 12 to 16 inches, sometimes over a 100 fish a day.
Other Rivers: The Mañihuales, the Toqui, the Boca de León, the Coyhaique, the Huemules and others.