Participants greet spectators during a dragon boat contest in the Tuojiang River of Fenghuang ancient town, central China's Hunan Province, June 17, 2018. Twenty dragon boat teams took part in the contest Sunday to greet the Dragon Boat Festival. (Xinhua/Yao Fang)

People watch a dragon boat contest on a bridge over the Tuojiang River of Fenghuang ancient town, central China's Hunan Province, June 17, 2018. Twenty dragon boat teams took part in the contest Sunday to greet the Dragon Boat Festival. (Xinhua/Peng Biao)

Participants compete during a dragon boat contest in the Tuojiang River of Fenghuang ancient town, central China's Hunan Province, June 17, 2018. Twenty dragon boat teams took part in the contest Sunday to greet the Dragon Boat Festival. (Xinhua/Peng Biao)

Participants compete during a dragon boat contest in the Tuojiang River of Fenghuang ancient town, central China's Hunan Province, June 17, 2018. Twenty dragon boat teams took part in the contest Sunday to greet the Dragon Boat Festival. (Xinhua/Peng Biao)

Participants compete during a dragon boat contest in the Tuojiang River of Fenghuang ancient town, central China's Hunan Province, June 17, 2018. Twenty dragon boat teams took part in the contest Sunday to greet the Dragon Boat Festival. (Xinhua/Yao Fang)

Participants compete during a dragon boat contest in the Tuojiang River of Fenghuang ancient town, central China's Hunan Province, June 17, 2018. Twenty dragon boat teams took part in the contest Sunday to greet the Dragon Boat Festival. (Xinhua/Peng Biao)