National Day of the PRC; anniversary of the founding of the People's Republic of China
Refers specifically to the October 1st national holiday in China. In Japanese contexts, it is understood as a proper noun for the Chinese celebration.
In China, a large-scale military parade is held on National Day.
During the National Day holiday period, many Chinese tourists visit Japan.
In China, National Day is celebrated on October 1st.
Many people travel during the National Day holidays.