For the "Tree Island" in Tuen Mun District, New Territories, Hong Kong, see Pak Chau.

In 1947, the Chinese named the island Zhaoshu Dao to commemorate Zhao Shu (Chinese: 赵述)[1] who accompanied Zheng He's expeditions in high seas (1405-1433).

It is under the administration of Hainan Province of China through the Zhaoshudao Village Committee.

There is beach volleyball equipment and facilities located on the island; there are also the ruins of a Chinese temple dating back to the Ming dynasty.

[citation needed] The Declaration of the Government of the People's Republic of China on the baselines of the territorial sea (May 15, 1996): Three 3 points on Zhaoshu Dao (Tree Island) are the baseline points of the Chinese territorial sea:[4]