Takefue (竹ふえ), a top luxury Onsen hot springs ryokan located in Kumamoto Prefecture, has three different (and very unique) private outdoor onsen baths that can be privately reserved by guests staying at the property. They are (in order shown in the video):
– Chikujo No Ma (竹城の間)
– Dokutsuburo (洞窟風呂)
– Chikurin No Yu (竹林の湯)
Chikujo No Ma, however, is only bookable by folks that stay at one of the four “Tokubetsu Shitsu” (Special Rooms.)
AloJapan.com