Besides moss, visitors can find several seaweed varieties washed ashore on the local beaches.
Ly Son Island is formed by five mountains, four of which are dormant volcanoes. It is a combination of three islands including Dao Lon (Big Island), Dao Be (Small Island or An Binh Islet) and Mu Cu Islet.
The annual Tet holidays and the first days of the Lunar New Year typically see thousands visiting the island every day. This year, the number of visitors was small because of the Covid-19 pandemic.
Le Van Ninh, vice chairman of the Ly Son People's Committee, said less than 2,000 visitors visited the island from lunar Dec. 28 to lunar Jan. 6, the Tet time.