You can take one-day tour from Kyoto or Osaka ( and Kobe ) for Okayama.
In Okayama city, you will enjoy the castle and one of three outstanding gardens in Japan is next to the castle.
This garden was made by the lord of Okayama castle, For 250 years, the garden changed the landscape a little by little depending on the lord's tastes.
How you enjoy it
It is not a large garden, but there is a rice field so that the lord can feel as if he is in the countryside because the lord could not walk freely outside of the castle especially in the faming area. Just walking and feel and enjoy the scenery!
The tea house and pine trees, and fields show the various aspect to you.
Just one hour shinkansen trip will take you there.
custom-made tour, I will arrange the wonderful tour for you. → https://triplelights.com/japan/tour/kyoto-by-tomoko-40