It consists of the Changshan Islands within the Bohai Strait, directly north of Penglai.

Changdao County had jurisdiction over one subdistrict, one town and six townships:[5] The major occupation of the islands is aquaculture, producing products such as sea cucumbers, abalone, sea urchins, bivalves, kelp, scallops, prawns and fish.

In 2020, the regional GDP of Changdao County will reach 744.597 million RMB, a decrease of 1.4% over 2019 in terms of comparable prices, and the added value of the primary industry will reach 478.123 million RMB, an increase of 6.4% over 2019.

There are 14 waterways in the territory, including 3 international waterways, and more than 300 large passenger and cargo ships pass by every day, which is the only place for domestic and foreign ships to travel to and from Tianjin, Beijing, Hebei, Liaoning and other regions.

Xianying Palace is a temple that was built during the Northern Song dynasty, starting in 1122.

It was originally a Taoist temple to the sea goddess Matsu, but became Buddhist later.

At the present time the local government has restored the temple to its Ming dynasty appearance, although many additions had been made during the Qing.

Police explained the reasons for this was due to the high number of military installations on the Island.

[6] On November 10, 2018, it won the award of "2018 China's Top Ten Tourism Demonstration Counties and Cities".