胶州湾
Qingdao Jiaozhou Bay Tunnel is an under-sea road tunnel located in Shandong Province in eastern China. It crosses underneath Jiaozhou Bay, connecting Huangdao to the south with the city of Qingdao in the north () at the narrow entrance to the bay. It starts at Tuandao Road in the north and ends between Beizhuang village and Houchawan village on Xuejia Island in the south.