Public garden in Katsushika specializing in Japanese irises (hanashōbu), featuring over 6,000 plants from 200 varieties. Best visited from late May to mid-June during peak bloom. The garden is compact but well maintained, with paths, ponds, and informative signs. Free admission, mainly visited during iris season.

Price: Free access
Touristy? : Moderately touristy, especially popular during bloom with flower enthusiasts, locals, and photographers