There are two bus ferries from Huangdao to downtown Qingdao. If you are on the side of Huangdao District Government, you can take Xuejia Island Ferry (Binhai Avenue, the eastern end of Changjiang Road, An Zi Wharf, not far from Golden Beach), and if you are on the side of Huangdao Street, you can take Huangdao Ferry (near Qingdao Port Oil Port Wharf, the terminal of the bus). Both routes are ferries to Qingdao.
After arriving in Qingdao, the traffic was inconvenient because the road was being built near Qingdao Ferry. You can consult the local driver master in Qingdao in advance.