Lake Genval (Dutch: Meer van Genval, French: Lac de Genval) is a lake located in Belgium in the south-east of Brussels near the Sonian Forest in the municipalities of Rixensart in Wallonia and Overijse in Flanders. The river of the lake is named Silver river. The lake is a great leisure place for the people of Brussels. All around the lake there are beautiful houses from the Belle �poque. One of these houses is named Ch�teau du lac (Castle of the lake) that is a five star hotel