is a

cave Caves or caverns are natural voids under the Earth's Planetary surface, surface. Caves often form by the weathering of rock and often extend deep underground. Exogene caves are smaller openings that extend a relatively short distance undergrou ...

that lies to the west of

Kumamoto is the capital Cities of Japan, city of Kumamoto Prefecture on the island of Kyushu, Japan. , the city has an estimated population of 738,907 and a population density of 1,893 people per km2. The total area is 390.32 km2. had a populat ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

, that became a temporary home to the legendary

rōnin In feudal Japan to early modern Japan (1185–1868), a ''rōnin'' ( ; , , 'drifter' or 'wandering man', ) was a samurai who had no lord or master and in some cases, had also severed all links with his family or clan. A samurai became a ''rō ...

Miyamoto Musashi , was a Japanese swordsman, strategist, artist, and writer who became renowned through stories of his unique double-bladed swordsmanship and undefeated record in his 62 duels. Miyamoto is considered a ''Kensei (honorary title), kensei'' (swo ...

. From 1643, Musashi spent many of his last months in the cave, meditating and writing his '' Book of Five Rings''. The cave is accessed easily by bus from

City and nearby Tamana.

Further reading