

Kazuma Tunnel is a moss-lined, abandoned concrete tunnel set against Okutama’s forested gorge — ideal for moody, textural shots and leading-line compositions. Visit at golden hour or overcast days for soft directional light; sunrise and blue hour accentuate silhouettes and interior reflections. Accessible from Shiromaru area by short walk; no entry fee but watch slippery surfaces and respect private signs. Weekdays are quieter; parking available at nearby trailheads and river parking lots.


Kazuma Tunnel is a moss-lined, abandoned concrete tunnel set against Okutama’s forested gorge — ideal for moody, textural shots and leading-line compositions. Visit at golden hour or overcast days for soft directional light; sunrise and blue hour accentuate silhouettes and interior reflections. Accessible from Shiromaru area by short walk; no entry fee but watch slippery surfaces and respect private signs. Weekdays are quieter; parking available at nearby trailheads and river parking lots.