1) lake in Switzerland 2) Lake of the canton of Bern 3) Lake of Upper Austria 
[Aargau] Egelsee is a lake at Bergdietikon, Aargau, Switzerland. Its surface area is 2 ha. It is the largest natural lake that lies entirely in the canton (the much larger Lake Hallwil lies partly in canton Lucerne). ==Etymology== Egelsee is possibly of Egyptian Coptic origins. ...[Berne] Egelsee or Egelmösli is a lake in the City of Berne, Switzerland. Its surface area is 1.52 ha. The lake is part of a park that stretches to the Paul Klee Zentrum. In some years, it freezes sufficiently to allow ice skating. ...[Kärnten] Egelsee is a lake of Carinthia, Austria. ...[Tyrol] Egelsee is a lake of Tyrol, Austria. ...[Unterach] Egelsee is a lake of Upper Austria. ...