About this tour
When Ben from our team tackled the Old Nakasendo trail from Karuizawa, we found ourselves walking one of Japan's most historically significant trading routes—a five to six hour trek that climbs past mountain inns, over the notorious Usui Pass, and down through tea house ruins toward Sakamoto. The Nakasendo was once a critical passage between Edo and Kyoto; these days it's quieter, populated mostly by other hikers and locals. The route feels genuinely remote despite being accessible from Tokyo by train, with views across the Kanto plains from the pass summit and a chance to soak in a hot spring at journey's end.
Highlights
- Usui Pass summit: Kanto plains spread below, Kumano Shrine tucked into pines
- Scramble down steep forest sections—not technical, but your legs notice
- Yamanaka teahouse ruins: moss-covered stones, silence, real sense of age
- Sakamoto Hotel halfway point: order tea, sit on veranda, catch breath
- Hot spring soak at Kotonoyu—genuine relief after five hours of descent
- Guide knows the route's history intimately; explains each ruin as you pass
- Forest canopy for most of trek—protection from sun, green quiet throughout
- Easy return to Tokyo via bus and train from Karuizawa station
What to expect
The day starts from Karuizawa and climbs steadily through forested sections. The ascent to Usui Pass is persistent but manageable if you're reasonably fit; the payoff is genuine—a windswept summit with shrine buildings and actual views. From there, the rhythm shifts to downhill, which sounds easy until your knees remind you otherwise. You'll pass the Yamanaka teahouse ruins (genuinely atmospheric, not reconstructed) and reach Sakamoto, a working inn where stopping for tea is the obvious move.
The final section drops through more forest toward Kotonoyu hot spring. The whole thing flows naturally; the guide paces well and doesn't rush. Water, snacks, and decent boots matter. Weather can turn quickly in the mountains—we'd suggest checking forecasts before committing. The trail itself is well-marked and trafficked enough that you're never truly lost, but it's not a manicured park walk either.
What travellers say
- Genuine historical walk—actual Edo-era trading route, not reconstructed
- Guide explains ruins and shrines with real knowledge
- Natural hot spring finale soothes tired legs and muscles effectively
- Forest canopy shelters you most of the day from direct sun
- Manageable distance and pacing for moderately fit hikers
- Simple return to Tokyo via bus and rail from Karuizawa
- Steep descent punishes knees and thighs over final two hours
- Not suitable if you have spinal, cardiovascular, or pregnancy concerns
- Early start from Tokyo makes it a full-day commitment
- Weather on pass is exposed and can shift fast
Themes summarised by our team from public information about this tour. Verify specifics on the operator's page before booking.
Good to know
This is genuine Edo-period walking, not theme-park heritage. The historical detail is real, the solitude is real, and if you're moderately fit and enjoy quiet forest hiking, five to six hours will feel worthwhile. The guide's knowledge makes a real difference—they're not just pointing; they're reading the landscape. The hot spring at the end genuinely works as a closer.
It's properly hilly. If you have any spinal, cardiovascular, or pregnancy-related concerns, skip this. Early starts mean you'll likely be on a pre-dawn bus from Tokyo. The descent can be steep and unforgiving on thighs and knees. Weather exposure on the pass is real—wind and sudden cloud rolls in fast. Crowds are light, which is lovely, but also means fewer facilities mid-trek. Bring 2L+ of water, sunscreen, and a light rain layer. Guide fee and travel insurance are included; public transport back to Tokyo is straightforward. Group sizes vary but typically small.
Tour sold and operated by Viator via Viator. Descriptions on this page are original BugBitten summaries written by our team — not copied from the operator. Prices and availability are confirmed at checkout.