Aerial photo taken on Oct. 22, 2020 shows boats sailing on the West Lake in Hangzhou, east China's Zhejiang Province. (Photos: Xinhua)

Aerial photo taken on Oct. 22, 2020 shows boats sailing on the West Lake in Hangzhou, east China's Zhejiang Province.

Aerial photo taken on Oct. 22, 2020 shows people enjoying themselves at an island in the West Lake scenic area in Hangzhou, east China's Zhejiang Province.

Aerial photo taken on Oct. 22, 2020 shows boats sailing on the West Lake in Hangzhou, east China's Zhejiang Province.

Aerial photo taken on Oct. 22, 2020 shows the autumn scenery of the West Lake scenic area in Hangzhou, east China's Zhejiang Province.

Aerial photo taken on Oct. 22, 2020 shows boats sailing on the West Lake in Hangzhou, east China's Zhejiang Province.

Aerial photo taken on Oct. 22, 2020 shows the autumn scenery of the West Lake scenic area in Hangzhou, east China's Zhejiang Province.