I was exploring around salisbury plain in my 4x4 and stumbled on a sign for "Wilsford Cum lake", least it explained why all the locals looked rather tired 8)
http://www.thelocalchannel.co.uk/WilsfordcumLake/home.aspx
http://www.thelocalchannel.co.uk/WilsfordcumLake/home.aspx