ZAGREB, June 11, 2016 (Xinhua) -- Chinese teachers of Confucius Institute and volunteers attend a dragon boat competition at Lake Jarun in Zagreb, Croatia, June 11, 2016. A dragon boat competition was organized by the Confucius Institute of the University of Zagreb on Saturday, celebrating Chinese traditional Duanwu Festival, or Dragon Boat Festival. (Xinhua/Miso Lisanin)