Country/territory: South Korea
Central coordinates (latitude / longitude): 37°46'59"N (37.7833°) / 128°54'00"E (128.9000°)
Area (reported): 100 hectares / 1.00 km² / 247 acres / 0.39 square miles
Area (GIS-derived): 105 hectares / 1.05 km² / 259 acres / 0.41 square miles
Altitude: 0–8 m (0–26 ft)