On the second Sunday of October each year, a colorful cosmos festival takes place at the Hokubo Cosmos Square in Maniwa City, Okayama Prefecture. The event is home to around one million flowers in a 1 hectare space, and there are also typically some fun stage performances and locally-made products available to purchase. For those who fancy stretching their legs a little, the cosmos square connects to a 6-kilometer long cosmos walking path along the nearby Bitchu River, which offers some incredibly picturesque views.
Entrance to the event is free of charge, but do bring some yen if you plan to buy some food or local crafts.