Held at Shimoda Koen Park situated on a small mountain near the Perry Road in Shimoda, Izu. 3 millions of various Hydrangea flowers will color the park while this festival is held.

Shimoda Ajisai (Hydrangea) Festival 下田あじさい祭

June 1st(Thu) to 30th(Fri) 2017
Lcation : Shimoda, Izu in Shizupka prefecture

Getting there:
15 min walk from Izukyu Shimoda Station

Official website (Japanese website)
http://www.shimoda-city.info/event/ajisai.html

YouTube by izuhapi https://youtu.be/efAoHDmzJz0

Related article in digi-joho TOKYO
Attractions in Southern Izu (Minami Izu)