Narai to Yabuhara Nakasendo Pass

The Narai to Yabuhara Nakasendo Pass follows a preserved section of the historic Nakasendo trade route over the Torii Pass, connecting the post towns of Narai and Yabuhara in the Kiso Valley, Shiojiri City, Nagano. The trailhead is at Narai Station, reached by JR Chuo Line, and the route runs 8 km one way with about 400 m of elevation gain to the pass, typically taking 3 to 4 hours. The path begins on the stone-paved streets of Narai-juku, a well-preserved Edo-period post town, before climbing into cedar forest on a dirt trail that follows the same route travelers used centuries ago between Kyoto and Edo. The climb to Torii Pass is steady but not steep, with occasional stone markers and small shrines along the way marking the historic route. From the pass, the trail descends through forest to Yabuhara-juku, a smaller post town with its own station for the return journey. There are no facilities or water sources along the forested middle section, so hikers should carry water from Narai before setting out. The trail can be muddy after rain, and trekking poles help on the descent toward Yabuhara. Both post towns retain traditional wooden buildings, and the walk is often combined with time exploring Narai's shops and lodges before or after the hike.