Visitors watch fish at a seaworld in Guiyang, capital of southwest China's Guizhou Province, on July 10, 2019. (Xinhua)

Visitors watch the performance by dolphins at a seaworld in Guiyang, capital of southwest China's Guizhou Province, on July 10, 2019. (Xinhua)

A visitor watches jellyfish at a seaworld in Guiyang, capital of southwest China's Guizhou Province, on July 10, 2019. (Xinhua)

People visit a seaworld in Guiyang, capital of southwest China's Guizhou Province, on July 10, 2019. (Xinhua)