The Yamagami Tunnel sits in the hills above Nanasawa, in Atsugi City, Kanagawa Prefecture — one of the most frequently cited haunted spots in the greater Tokyo area.
Getting there
Reached from Hon-Atsugi Station via bus toward Nanasawa and then a walk up a mountain road. Guides consistently warn the final stretch is unlit and unpaved in places.
What locals say
The core legend describes a person — a hiker or construction worker — who disappeared near the tunnel and was never found, framing the area as a site of kamikakushi (“spirited away”) disappearances. A second story describes a girl in white seen playing in a nearby stream.
We could not verify either story against a news archive or police record; details differ from site to site, typical of an oral legend reshaped through retelling.
What we could confirm
The tunnel is a real, physically modest mountain tunnel near Nanasawa Onsen and hiking trails around Mount Oyama. Its reputation rests almost entirely on the ghost stories, not on any verified tragedy — we found no news reporting or official record confirming a fatal accident or missing-persons case here.
Can you visit: Yes, partially — accessible on foot from a bus stop, but the unlit approach road is a real physical safety risk after dark, independent of any ghost story.
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