Country/territory: China (mainland)
Central coordinates (latitude / longitude): 37°12'00"N (37.2000°) / 122°30'00"E (122.5000°)
Area (reported): 10,500 hectares / 105.00 km² / 25,946 acres / 40.54 square miles
Area (GIS-derived): 3,795 hectares / 37.95 km² / 9,378 acres / 14.65 square miles
Altitude: 0–5 m (0–16 ft)