Country/territory: China (mainland)
Central coordinates (latitude / longitude): 29°25'00"N (29.4167°) / 122°12'00"E (122.2000°)
Area (reported): 114,950 hectares / 1,149.50 km² / 284,048 acres / 443.82 square miles
Area (GIS-derived): 5,280 hectares / 52.80 km² / 13,047 acres / 20.39 square miles
Altitude: 0–50 m (0–164 ft)