Tourists gather at a waterfront pavilion at the West Lake in Hangzhou in eastern China's Zhejiang Province, Thursday, Oct. 1, 2020. Millions of Chinese tourists usually would use their week-long National Day holidays to travel abroad. This year, travel restrictions due to the coronavirus pandemic mean that some 600 million tourists - about 40% of the population - will travel within China during the holiday that began Thursday, according to Ctrip, China's largest online travel agency. (Chinatopix via AP)

Visitors wearing masks to protect from coronavirus hold for Chinese flags for a photo as they visit Tiananmen Square during National Day in Beijing on Thursday, Oct. 1, 2020. Millions of Chinese tourists usually would use their week-long National Day holidays to travel abroad. This year, travel restrictions due to the coronavirus pandemic mean that some 600 million tourists - about 40% of the population - will travel within China during the holiday that began Thursday, according to Ctrip, China's largest online travel agency. (AP Photo/Ng Han Guan)

Tourists crowd along a waterfront path at the West Lake in Hangzhou in eastern China's Zhejiang Province, Thursday, Oct. 1, 2020. Millions of Chinese tourists usually would use their week-long National Day holidays to travel abroad. This year, travel restrictions due to the coronavirus pandemic mean that some 600 million tourists - about 40% of the population - will travel within China during the holiday that began Thursday, according to Ctrip, China's largest online travel agency. (Chinatopix via AP)

A woman lowers her mask for a selfie on Tiananmen Square during National Day in Beijing on Thursday, Oct. 1, 2020. Millions of Chinese tourists usually would use their week-long National Day holidays to travel abroad. This year, travel restrictions due to the coronavirus pandemic mean that some 600 million tourists - about 40% of the population - will travel within China during the holiday that began Thursday, according to Ctrip, China's largest online travel agency. (AP Photo/Ng Han Guan)

Visitors wearing masks to protect from coronavirus line up for security checks to enter the Tiananmen area during National Day in Beijing on Thursday, Oct. 1, 2020. Millions of Chinese tourists usually would use their week-long National Day holidays to travel abroad. This year, travel restrictions due to the coronavirus pandemic mean that some 600 million tourists - about 40% of the population - will travel within China during the holiday that began Thursday, according to Ctrip, China's largest online travel agency. (AP Photo/Ng Han Guan)

A man pushes a woman in a wheelchair holding a Chinese flag along a covered walkway at the Temple of Heaven in Beijing, Thursday, Oct. 1, 2020. Millions of Chinese tourists usually would use their week-long National Day holidays to travel abroad. This year, travel restrictions due to the coronavirus pandemic mean that some 600 million tourists - about 40% of the population - will travel within China during the holiday that began Thursday, according to Ctrip, China's largest online travel agency. (AP Photo/Mark Schiefelbein)

Visitors wearing face masks to protect against the coronavirus walk through in a doorway at the Temple of Heaven in Beijing, Thursday, Oct. 1, 2020. Millions of Chinese tourists usually would use their week-long National Day holidays to travel abroad. This year, travel restrictions due to the coronavirus pandemic mean that some 600 million tourists - about 40% of the population - will travel within China during the holiday that began Thursday, according to Ctrip, China's largest online travel agency. (AP Photo/Mark Schiefelbein)

A man wearing a face mask to protect against the coronavirus holds a Chinese flag as he visits the Temple of Heaven in Beijing, Thursday, Oct. 1, 2020. Millions of Chinese tourists usually would use their week-long National Day holidays to travel abroad. This year, travel restrictions due to the coronavirus pandemic mean that some 600 million tourists - about 40% of the population - will travel within China during the holiday that began Thursday, according to Ctrip, China's largest online travel agency (AP Photo/Mark Schiefelbein)

A boy poses with Chinese flags at the Temple of Heaven in Beijing, Thursday, Oct. 1, 2020. Millions of Chinese tourists usually would use their week-long National Day holidays to travel abroad. This year, travel restrictions due to the coronavirus pandemic mean that some 600 million tourists - about 40% of the population - will travel within China during the holiday that began Thursday, according to Ctrip, China's largest online travel agency. (AP Photo/Mark Schiefelbein)