Is the sea water deep in Wanning Shenzhou Peninsula?

Very deep. The depth varies from a few meters to two or three kilometers.

Shenzhou Peninsula is located at the intersection of G98 Xinglong/Shenzhou Peninsula Expressway on Hainan East Line, 3 km away from Hainan Xinglong Overseas Chinese Tourist Area, 10 km. Shenzhou Peninsula is surrounded by sea on three sides and land on one side, covering an area of 24 square kilometers, 2.7 kilometers wide in the northwest and 8.7 kilometers long in the southeast. It borders Niubiao Ridge in the east, Nanhai in the south, Laoye Harbor in the west and Dongao Harbor in the north.