Abandoned Railway Walk

Step off the beaten path to trace the old Usui Line between Yokokawa and Karuizawa on the Abandoned Railway Walk. Once a vital transportation link, this 11.2-kilometer line opened in 1893, navigating the steep mountains between Gunma and Nagano with 26 tunnels.

Now, part of the abandoned line is open periodically for guided walks. Walking downline from Yokokawa, the route is around 10 kilometers, passing through 18 tunnels. The upline route from Karuizawa is around 8 kilometers, passing through 11 tunnels.

One of the walk’s highlights is the Usui 3rd Bridge (Megane-bashi), Japan’s largest brick-built arched bridge. Built in 1892, it stands 31 meters tall and is a stunning testament to nineteenth-century construction. Another key point along the route is Kumanodaira Station, the gateway to the Usui Line tunnels. Normally off-limits to visitors, this section of the line is open periodically for these guided walks.

The Usui Line played a crucial role in Japan’s industrial development, enabling the mass export of raw silk from Gunma and Nagano to the world via Yokohama. The walk also includes a special bento lunch at Kumanodaira Station, adding to the unique experience. Tours are usually held between early spring and autumn. Check the website for upcoming dates and reserve your spot in advance.