Hama Rikyu is a large, attractive landscape garden in central Tokyo. Located alongside Tokyo Bay, Hama Rikyu features seawater ponds which change level with the tides, and a teahouse on an island where visitors can rest and enjoy the scenery. The garden has served many purposes over the centuries. It was originally built as a feudal lord's Tokyo residence and duck hunting grounds during the Edo Period (1603-1867), but later served as a strolling garden and as an imperial detached palace before eventually being opened to the public in its current form. A peony garden, plum tree grove and cosmos fields have flowers for every season.