Thousands of drones form the Chinese characters "Greater Bay Area, Greater Future" in Guangzhou, South China's Guangdong province, on April 19, 2021. [Photo by Wang Zhuangfei/chinadaily.com.cn]

Thousands of drones light up the night sky for the greater future of the Greater Bay Area in Guangzhou, South China's Guangdong province, on April 19.

Thousands of drones form a map of the Greater Bay Area in Guangzhou, South China's Guangdong province, on April 19, 2021. [Photo by Wang Zhuangfei/chinadaily.com.cn]