Country/territory: Belgium
Central coordinates (latitude / longitude): 51°00'00"N (51.0000°) / 002°49'59"E (2.8333°)
Area (reported): 5,100 hectares / 51.00 km² / 12,602 acres / 19.69 square miles
Area (GIS-derived): 5,129 hectares / 51.29 km² / 12,674 acres / 19.80 square miles
Altitude: 3–7 m (10–23 ft)