The Zervreilasee, located near the upper end of the Valser Tal, is surrounded by peaks over 3,000 metres. The highest visible from the lake is the Güferhorn (3,379 m), located on the south side. Other peaks are the Fanellhorn (3,124 m), the Frunthorn (3,030 m), Piz Scharboda (3,122 m), the Plattenberg (3,041 m) and the Furggeltihorn (3,043 m). The Zervreilahorn is a sharp peak overlooking the lake from its south-west side.