Changdao is not one island but 32, strung across the Bohai Strait between the Shandong and Liaodong peninsulas, and it is the only island county in Shandong. Only the two largest, South and North Changshan, are joined — by a causeway — so everything else means a boat, and that is the whole character of the place. More than half the land is forest, and the islands sit on the main bird migration route of eastern Asia: some 200 species and around a million birds pass through, which is why they are a national nature reserve.
The one trip everybody takes is the boat out to Waniao Island. You cannot land — the island is uninhabited and protected — so the boat drifts in under the cliffs while tens of thousands of gulls wheel around it, and everybody throws bread. May is the month, when the birds are sitting on eggs and the noise is at its worst. Bring the hard crusts; they throw better.
The geology is the other reason to come. At Linhai Park a stair of 369 steps drops to the water at the point where the Yellow Sea and the Bohai Sea meet and refuse to mix — a visible line, deep blue on one side, pale yellow on the other, dividing a fishing ground from a shellfish farm. At Jiuzhangya the cliffs stand almost vertical out of the sea, with a 12-metre Guanyin at the gate and a stair down to the base. At Yueya Bay the beach is made entirely of polished pebbles, and walking them barefoot is the point.
It is slow here, and that is the argument. In July the average temperature is 22.8°C and it falls to 18°C at night, so you will want a jacket in summer. The bus system is built for commuters, not visitors, so you charter a car or borrow a bike from your host family. Stay with a fishing household, eat what came off the boat that morning, and go to bed early enough to be up for the sunrise.