A visitor of the Zhuang ethnic group poses for a photo with a lotus flower at the Puzhehei national wetland park in Qiubei County, southwest China's Yunnan Province, July 11, 2019. (Xinhua/Jiang Wenyao)

Aerial photo taken on July 11, 2019 shows tourists taking a boat to view lotus flowers at the Puzhehei national wetland park in Qiubei County, southwest China's Yunnan Province. (Xinhua/Jiang Wenyao)

Visitors of the Zhuang ethnic group view lotus flowers at the Puzhehei national wetland park in Qiubei County, southwest China's Yunnan Province, July 11, 2019. (Xinhua/Jiang Wenyao)

Visitors view lotus flowers at the Puzhehei national wetland park in Qiubei County, southwest China's Yunnan Province, July 11, 2019. (Xinhua/Jiang Wenyao)

Visitors view lotus flowers at the Puzhehei national wetland park in Qiubei County, southwest China's Yunnan Province, July 11, 2019. (Xinhua/Jiang Wenyao)

Visitors view lotus flowers at the Puzhehei national wetland park in Qiubei County, southwest China's Yunnan Province, July 11, 2019. (Xinhua/Jiang Wenyao)

Visitors view lotus flowers at the Puzhehei national wetland park in Qiubei County, southwest China's Yunnan Province, July 11, 2019. (Xinhua/Jiang Wenyao)

A visitor of the Zhuang ethnic group poses for a photo with a lotus flower at the Puzhehei national wetland park in Qiubei County, southwest China's Yunnan Province, July 11, 2019. (Xinhua/Jiang Wenyao)