The Land of Caves (洞窟の国, Dōkutsu no Kuni) is a country full of inaccessible caves and rocky soil, which makes the crossing access difficult and only by climbing. The land is positioned at the border of the Land of Mountains and it is located four countries away from the Land of Demons. In Part II, the land is briefly mentioned by Hotaru Canan as the place where she learnt the Sage Mode from bats. Hotaru states that even if the region is not as well-known as the legendary three: Mount Myōboku, Ryūchi Cave and Shikkotsu Forest, it is still a good place for meditation.