Koi Fishes Swimming On A Calm Water Of The Pond From Senzokuike Park In Tokyo Japan

koi swan boats koi fish fish aquatic amur carp cyprinus rubrofuscus wildlife national geographic japan fishes animal swim tranquil lake environment swimming water tokyo japanese orange goldfish senzokuike park underwater zen pet chinese pond attractions carp habitat culture nature red natural park scales planet oriental gold traditional walking paths colorful exotic golden tropical senzokuike station ornamental white