Get off at Qingdao Railway Station, take No.8 bus to the ferry (the terminal of No.8 bus), take the ferry to Huangdao, then change to 18 bus to get off at Duoyuan Mall, then walk west, and you will see the school after that small uphill.
If you take a bus, take a bus directly to Huangdao, then get off at the end, then go west, and you will see the school after that small uphill. The bus stop is next to the school.
I can take the tunnel bus when I get out of the railway station, but the tunnel hasn't been opened since I graduated. I don't know which way to take from the railway station to the tunnel. After crossing the tunnel, there are no.4 buses that go directly to the north gate of the school.