Another example of a pool / spa blending into the environment.Satonoyu Ryokan, Kurokawa Onsen Area, Kumamoto-ken (Kyushu) - Absolutely inviting, comfortable and well taken care of; stunning outdoor onsens await you here!
Turn a small courtyard into a sanctuary by adding an outdoor hot tub! Fun view of spa pool from above. I would have a hot tub like this! It's private and looks so nice rather than those ugly big plastic things.