Omagari River Park

Lovely hydrangea spot

Omagari River Park is a particularly lovely spot at this time of year when an abundance of hydrangeas are all in bloom. It also has the benefit of not being particularly well known outside the general Niigata area, so you're not going to have to contend with a ton of crowds like you do at some places. A really pleasant place to enjoy a low-key ajisai season!