Aerial photo taken on May 24, 2019 shows scenery of the West Lake in Hangzhou, east China's Zhejiang Province. (Photos: Xinhua)

Aerial photo taken on May 24, 2019 shows vehicles running on the Yanggongdi Causeway in the West Lake scenic area in Hangzhou, east China's Zhejiang Province.

Aerial photo taken on May 24, 2019 shows scenery of the West Lake in Hangzhou, east China's Zhejiang Province.

Aerial photo taken on May 24, 2019 shows a dock at the West Lake scenic area in Hangzhou, east China's Zhejiang Province.

Aerial photo taken on May 24, 2019 shows cars running on the Yanggongdi Causeway in the West Lake scenic area in Hangzhou, east China's Zhejiang Province.

Aerial photo taken on May 24, 2019 shows scenery of the West Lake in Hangzhou, east China's Zhejiang Province.