Lake Sempach

lake in Switzerland

Lake Sempach (German: Sempachersee) is a lake in the canton of Lucerne in Switzerland. Its area is about 14.5 km² and its maximum depth is 87 meters.

Lake Sempach, view from Sempach

A 50 metre-large island named Gamma Insel is east of Sursee.

It gives the name to the municipality of Sempach.