Nov. Highlights and how to get to Okayama Castle/Koraku-en Garden. Two major sightseeing spots proud to the world in Okayama are "Okayama Castle" and "Koraku-en".Okayama Castle is one of ... 2016.06.06 Aug.CastlesChugoku regionFestivals & EventsHow toJapanese gardensMayNov.RegionSeasonal eventsTourist Facilitiesgosee