Advance Booking during cherry blossom season, the opening hours and the change of the rules as the preventive measures of the coronavirus (COVID-19) infection.

During cherry blossom viewing season (March 19 – April 10), advance booking is required to enter Shinjuku Gyoen to alleviate congestion and prevent COVID-19 infections.

more >> http://www.env.go.jp/garden/shinjukugyoen/english/index.html