Akayama Underground Tunnels

The Akayama Underground Tunnels extend through 1.6 kilometers of subterranean passages beneath the hills of Tateyama, with 250 meters open to visitors.

The Japanese Navy constructed these tunnels during the late 1930s, using them as a command center and hospital facility throughout World War II.

The tunnels demonstrate wartime engineering and military infrastructure, preserving tangible evidence of Japanese defensive preparations during the Pacific War period.

Visitors receive helmets and flashlights upon entry, with admission costing 200 yen for adults and operating hours from 9:30 AM to 4:00 PM.

The tunnel network contains original power generator remnants and medical facility structures from its wartime operations, maintaining their configuration from the 1940s.

Location: Tateyama

Website: https://city.tateyama.chiba.jp/syougaigaku/page004278.html

GPS coordinates: 34.98175,139.84167

Latest update: March 6, 2025 17:51