Country/territory: Japan
Central coordinates (latitude / longitude): 33°37'00"N (33.6167°) / 130°20'59"E (130.3500°)
Area (reported): 9,000 hectares / 90.00 km² / 22,239 acres / 34.75 square miles
Area (GIS-derived): 7,248 hectares / 72.48 km² / 17,910 acres / 27.98 square miles
Altitude: 0–5 m (0–16 ft)