Day1 Qingdao: Zhanqiao Pier and the Badaguan European buildings; fresh Tsingtao draft at the beer street at night.
Day2 Qingdao: Mount Lao day trip (Jufeng or Beijiushui), back to the city for May Fourth Square and the Olympic Sailing Centre.
Day3 Weihai: 1.5h by high-speed rail; visit Liugong Island (Sino-Japanese War memorial), evening at the international bathing beach.
Day4 Weihai to Yantai: coastal bus/ferry to Penglai Pavilion, home of the "Eight Immortals" legend.
Day5 Yantai: cycle Yangma Island, try Yantai apples and mackerel dumplings, return in the afternoon.
Food: Tsingtao beer, seafood BBQ, Weihai mackerel dumplings, Yantai menzi. Best May-October.