They included ambassadors, representatives of diplomatic missions, international and non-governmental organizations, bilateral friendship associations between Vietnam and other countries.

Within the event, co-organized by the Vietnam Union of Friendship Organizations (VUFO) of Hanoi city and the Dong Anh district's People's Committee, the delegates visited Co Loa ancient citadel known as a special national relic certificate, offered incense to King An Duong Vuong and planted trees in the relic area.

Later, they watched a water puppet show in Dao Thuc village, Thuy Lam commune, Dong Anh district and had exchanges with the artists.

VUFO Hanoi President Dao Van Binh emphasized that the annual spring festival aims to introduce international friends to beautiful relics in Vietnam, especially Hanoi.

Katherine Muller, head of the UNESCO Hanoi Office, believed that such events will contribute to strengthening friendship, cooperation and mutual understanding between Vietnam and international friends.