Country/territory: South Korea
Central coordinates (latitude / longitude): 38°19'59"N (38.3333°) / 128°31'00"E (128.5167°)
Area (reported): 64 hectares / 0.64 km² / 158 acres / 0.25 square miles
Area (GIS-derived): 53 hectares / 0.53 km² / 131 acres / 0.20 square miles
Altitude: 0–10 m (0–33 ft)