Gridley Tunnel

According to legends, Japanese samurai ghosts are seen in this place.

The Gridley Tunnel at the Yokosuka Naval Base is a single-row, narrow tunnel in which the spirit of a once-surprised and murdered samurai has settled.

There is a belief that this warrior set out to avenge the death of his master, and was attacked by his enemies on the way. Since he couldn't finish the job he started, the samurai ghost couldn't leave this place.