This lake is the largest in the Peruvian Amazon. It is also known by the name Musha Karusha. Formed by the merging of the Capuri and Rimache rivers, it is located on the right bank of the Pastaza river (Loreto). For the native Cadoshi community, who live in the area, the lake is sacred as it is considered to be a source of life.
The lake is surrounded by dense tropical forest, and it covers an area of 79 km2 (30 sq. miles). Its waters are home to important species including the paiche fish, catfish, piranhas and wrasse. Tapirs, turtles, herons, caiman alligators and a large variety of butterflies can also be seen on the lake's shores.