This shallow, reedy lake at the base of Volcán Rumiñahui is home to local and migrating waterfowl. An easy 2.6km trail circumnavigates the lake, but keep a safe distance from the bulls that like to sip at the shore. There are several viewing platforms around the lake.

North of the lake a trail takes you to the top of the 4721m Volcán Rumiñahui, a long day hike.