This park was built on the site of Suma Rikyu (officially known as Muko Rikyu), which was once a villa for the emperor. In the vast grounds, there is a botanical garden where you can enjoy seasonal scenery and greenhouse plants, a garden that retains the atmosphere of the former Imperial Villa, and many seasonal events. The Royal Rose Garden, located in the European Fountain Garden, boasts 4,000 roses of 180 varieties and offers a wonderful view and fragrance in spring and autumn.