Rutland Water is a reservoir in Rutland, England, east of the county town, Oakham. It is filled by pumping from the River Nene and River Welland and provides water to the East Midlands. It is one of the largest artificial lakes in Europe. By surface area it is the largest reservoir in England, but by capacity it is exceeded by Kielder Water.
Set in 3,100 acres of countryside, it has a 23-mile perimeter track, for walking or cycling. Since the water is drawn upon when needed, the relative areas of land and water vary a little, but the flatter parts of the lake margin are enclosed by banks so that the wetland nature reserve is maintained.
Wikipedia https://en.wikipedia.org/wiki/Rutland_Water
Address LE15 8, United Kingdom
Coordinates 52°39'15.812" N -0°39'19.644" E