Nakasendō Trail: Japan’s Original Highway Was Built for Walking

October is the best time to hike through Japan. 

After the summer heat fades, the mountain air turns crisp and brilliant colors light up the Kiso Valley. Japanese maples glow in shades of crimson. Golden ginkgo trees brighten temple grounds and village streets. Persimmons hang beneath farmhouse eaves like orange lanterns, while harvested rice fields stretch across the valleys.  

The scent of cedar forests, damp earth, and wood smoke drifts through the cool morning air.  

Underfoot, leaves crunch softly as rushing streams and distant temple bells replace the sounds of modern life. 

This is the Nakasendō with Boundless Journeys. 

Walk Japan’s Historic Nakasendō Trail

Long before Japan was connected by bullet trains, the Nakasendō was one of the country’s most important highways. Stretching more than 330 miles between Kyoto and Edo (modern-day Tokyo) it carried samurai, merchants, pilgrims, and government officials through the mountains of central Japan.  

Every few miles, travelers found welcoming post towns where they could eat, rest, and spend the night before continuing their journey. 

Unlike many historic roads that disappeared beneath modern development, sections of the Nakasendō remain remarkably intact. Stone-paved paths still wind through towering cedar forests. Wooden bridges cross clear mountain streams.  

Carefully preserved villages continue to welcome visitors much as they did centuries ago. 

Why October Is One of the Best Times to Visit Japan 

Autumn brings a special feeling to the trail.

Days are comfortably cool for walking, while evenings invite travelers into cozy ryokan inns and soothing hot spring baths.  

Along the route, roadside stands overflow with crisp apples, chestnuts, and late-season produce. Dinner showcases the flavors of the mountains—handmade soba noodles, earthy mushrooms, regional vegetables, and local sake enjoyed at an unhurried pace. 

It’s a season that engages every sense. It’s a secret season for those who know. 

Experience Japan at Walking Pace 

The Nakasendō was never designed to conquer peaks or chase famous viewpoints. It was built to connect communities and that’s what Boundless Journeys are all about.  

Walking it today means slowing down enough to notice the details: a weathered wooden storefront, a grandmother sweeping her doorway, the scent of fresh cedar after an overnight rain, or the quiet stillness that settles over a village as evening approaches. 

We’ve long believed that walking reveals a destination in ways no train or tour bus ever can. The Nakasendō embodies that philosophy. Rather than rushing from one landmark to the next, the journey unfolds one village, one meal, and one conversation at a time. 

And in October, every step is framed by the colors, flavors, and timeless traditions of autumn in the Japanese Alps. 

Stay tuned for parts 2 & 3 to this series on Japan.

About the Author: Kristin is a former European tour leader who now develops new walking, hiking, and cultural journeys for Boundless Journeys.