It won't open. Official website of Cangnan Library shows that during the Labor Day holiday in 2023, Cangnan Library will open as usual on April 29th, 30th, 2nd and 3rd, and close on May 1 day. Cangnan County, belonging to Wenzhou City, Zhejiang Province, is located at the southernmost tip of Zhejiang Province. Because it is located at the southern foot of Yucang Mountain, the county name is Cangnan.