Japanese Alps Hike: Kamikochi to Karasawa (Karasawa Cirque), Matsumoto – Chubusangaku National Park, Northern Alps, Japan

Region: Northern Japanese Alps (Hotaka Range) – Nagano (Chubu), Japan

Places To Stay: This one’s a proper Japan Alps classic — you walk in from Kamikochi through the valley (Tokusawa + Yokoo), then pop out into the dramatic bowl of Karasawa Cirque surrounded by the Hotaka peaks. Most people do it as a 2-day trip with a night in a mountain hut (or camping), especially in late September / early October when the place goes full-on autumn postcard.

Kamikōchi to Karasawa is a Japanese Alps hikes that deserves a place on any “best walks in Japan” list. Starting beside the crystal-clear Azusa River at around 1,500 metres, the route leads deep into Chūbu-Sangaku National Park, first through the beautiful and relatively gentle Kamikōchi valley before eventually climbing into the spectacular Karasawa Cirque beneath the Hotaka mountains.

The contrast is what makes this walk so good. For the first 10 km or so you follow rivers, forest paths and bridges through places such as Tokusawa and Yokoo, surrounded by mountains but without doing a huge amount of climbing. Cross Yokoo Bridge, however, and the character changes. The trail becomes rougher and steeper as you gain height towards Karasawa, eventually emerging into an enormous glacial cirque surrounded by some of the highest and most dramatic mountains in Japan.

My GPX covers approximately 30.4 km there and back, with around 1,410 metres of cumulative ascent, so despite the straightforward opening kilometres this is a substantial mountain journey. In normal snow-free summer and autumn conditions the standard route to Karasawa isn’t technical and doesn’t require climbing equipment, but the distance, ascent, mountain weather and rougher terrain beyond Yokoo still demand proper preparation.

Most walkers make it a two-day adventure, spending the night at Karasawa Hütte, Karasawa Goya or the designated campsite before returning to Kamikōchi the following day. And if you can time it for the autumn colours, the combination of red and gold slopes, hundreds of colourful tents and the huge Hotaka peaks above Karasawa creates one of the most extraordinary mountain scenes in Japan.

Looking for more trails in Japan? Visit my Japan Hiking Trails page.

Below are 3 ideas for trips, transfers and tours around Kamikochi / the Japan Alps, with GetYourGuide offering great discounts and availability + Much more!

For a wider choice of accommodation in the Matsumoto / Nagano area (handy for Kamikochi access), Booking.com has a huge variety to browse through.

Flying in? Quick Skyscanner Checker

Nearest small airport: Matsumoto Airport (MMJ). Most travellers fly into Tokyo (HND/NRT) then train to Matsumoto and bus onward to Kamikochi.

Getting There: Directions, GPX and App Link

• Start/Finish: Kamikochi Bus Terminal (access via bus from Matsumoto / Shin-Shimashima, or via Sawando / Hirayu transfer).
• Important: Private cars aren’t allowed into Kamikochi — you park at Sawando (Nagano side) or Hirayu (Gifu side) and transfer by bus/taxi.
• Seasonality: Best May–October. Late September to early October is peak autumn colours (and peak crowds). Snow can linger early/late season.
• GPX: Download the GPX file here
• You can follow this route on my Outdooractive and Komoot profiles.

Hike Profile

• Distance: 30.38 km from your GPX
• Route: Kamikōchi → Tokusawa → Yokoo → Karasawa → return
• Route type: Out-and-back
• Start/Finish: Kamikōchi Bus Terminal – approx. 1,510m
• Highest point: Karasawa – approx. 2,304m
• Height difference: Approx. 790–800m
• Cumulative ascent: Approx. 1,410m
• Cumulative descent: Approx. 1,410m
• Walking time: Approx. 11–12 hours total
• Recommended duration: 2 days / 1 night
• Difficulty: Moderate–Hard / Challenging
• Terrain:Valley paths, woodland, bridges, mountain trail, rocks and boulders
• Technical difficulty: Non-technical in normal snow-free conditions
• Best walking period: Generally summer to autumn; conditions must be checked

Stages & Distances (Typical 2-Day Itinerary)

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Hike Description

The walk starts at Kamikōchi Bus Terminal, around 1,500 metres above sea level, and within minutes you’re surrounded by what makes Kamikōchi so special. The water of the Azusa River is unbelievably clear, forest covers the valley floor and huge mountain faces appear between the trees. Considering where this walk eventually takes you, the beginning is remarkably relaxed.

Leaving the busy area around central Kamikōchi behind, you begin working deeper into the valley towards Tokusawa. This first part isn’t about gaining huge amounts of height; it’s about covering distance through some of the most beautiful valley scenery in the Japanese Alps. The paths are generally good, the river is never far away and mountain huts and rest points break the journey into very manageable sections.

Tokusawa is an obvious place to stop for a drink, food or simply a few minutes off your feet. From here the route continues towards Yokoo and the surroundings gradually begin to feel more mountainous and remote. You’re still making relatively easy progress, but by now several kilometres have quietly disappeared beneath your boots.

Yokoo is the real dividing line of the hike. Kamikōchi to Yokoo is roughly 10 km with comparatively little overall height gain; beyond Yokoo Bridge you finally start earning your arrival in Karasawa.

The trail becomes rougher and the gradient noticeably increases as you leave the valley behind. This isn’t a technical climb in normal summer conditions, but there are far more rocks and boulders underfoot and the accumulated distance begins to make itself felt. The landscape also changes dramatically. Forest gradually gives way to a much more open alpine environment and the walls of the Hotaka mountains start closing around you.

Then Karasawa finally appears.

It is difficult to prepare yourself for the scale of the place. Karasawa is an enormous glacial cirque sitting at roughly 2,300 metres beneath the Hotaka peaks, with Karasawa Hütte, Karasawa Goya and the campsite surrounded by mountains on almost every side. After spending hours walking up the valley, suddenly arriving in this giant natural amphitheatre feels like you’ve entered another world.

Autumn is when Karasawa becomes particularly famous. The vegetation covering the lower slopes turns through reds, oranges and yellows, while the campsite below can fill with brightly coloured tents. Unsurprisingly, it’s also when the route can become incredibly busy, so accommodation and transport need more planning than they would during quieter periods.

For me, this is a route that makes far more sense over two days. Staying in Karasawa gives you time to enjoy where you’ve walked to rather than immediately turning around and racing for the last bus. You can sit beneath the peaks as the light disappears, eat at the hut or settle into your tent, and then wake up surrounded by one of the great mountain landscapes of Japan.

Day two retraces the route back towards Yokoo. The first descent needs concentration on tired legs because the rougher rocks and boulders don’t magically become easy just because gravity is helping. Once you cross Yokoo Bridge, however, the character changes again and the mountains gradually give you back to the valley.

The final kilometres through Tokusawa towards Kamikōchi are long, and your feet will probably know they’ve covered more than 30 km by the time the bus terminal reappears, but they’re also a lovely way to finish. The Azusa River returns, the paths become gentler and the walk that began as an alpine valley stroll ends in exactly the same way.

Kamikōchi to Karasawa isn’t about reaching a summit. That’s one of the things I like about it. The destination is the landscape itself, walking from one of Japan’s most beautiful valleys into the heart of the Northern Alps and spending a night beneath the Hotaka mountains before walking back out again.

Walk this route yourself in 3D!

The video is a 3D walkthrough of this route; it’ll give you a great idea of what to expect before you set foot on the trail.

I’ve created 3D videos of my walks and shared them with the Outdooractive and Welsh Man Walking communities.

Kamikochi to Karasawa – 3D Walkthrough

Places to Stay (Matsumoto / Kamikochi / Karasawa)

Mountain huts can sell out fast in peak season (especially autumn colours). Below are a few options:

Karasawa Mountain Huts

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Karasawa Hutte (Karasawa Hyutte)

Right in the cirque with unreal views. A popular base for sunrises and (for experienced folk) bigger Hotaka objectives.

Check Availability

Karasawa Goya

A smaller hut option in Karasawa — brilliant atmosphere in peak season, but book early if you want a bed.

Check Availability

Base Stays (Matsumoto / Kamikochi)

Kamikochi / Matsumoto Base Options

If you want the easiest logistics, base yourself in Matsumoto (more choice) or stay in Kamikochi itself if you can grab a room.

Check Availability

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For a wider choice of accommodation in the Matsumoto / Nagano area, Booking.com has a huge variety to browse through.

Practicalities

Getting to Kamikōchi: Private cars are not permitted into Kamikōchi itself. From the Nagano/Matsumoto side, drivers normally leave their vehicle at Sawando and continue by bus or taxi. From the Gifu/Takayama side, Hirayu is the main transfer point. Public transport is also available from Matsumoto, often via Shin-Shimashima. Check the current timetable before travelling, particularly if you are relying on the final bus out of Kamikōchi.

Route distance and duration: My GPX measures approximately 30.4 km for the complete out-and-back from Kamikōchi Bus Terminal to Karasawa and back, with around 1,410m of cumulative ascent. Allow roughly 11–12 hours of actual walking across the complete route. Although very strong walkers can attempt it in a day, I think it makes far more sense as a two-day walk with a night in Karasawa.

Season and trail conditions: Kamikōchi itself is generally accessible from mid-April until mid-November, but that does not mean the mountain trail to Karasawa offers straightforward summer walking throughout that entire period. Snow can remain well into the earlier season and return in autumn, so check current trail and weather reports before setting out. Summer through early autumn is the normal hiking period for walkers without winter mountaineering equipment.

Autumn colours: Karasawa is particularly famous for its autumn colours, normally around late September and early October, although the exact timing varies each year. This is also one of the busiest periods of the season, with mountain huts, buses and the campsite potentially extremely busy.

Mountain huts: Karasawa Hütte and Karasawa Goya provide accommodation in the cirque. Reservations are strongly recommended, particularly during weekends and the autumn colour season. For 2026, Karasawa Goya is scheduled to operate from 27 April to 3 November. Its official advice asks walkers to plan to arrive by around 15:00 and specifically advises against leaving Yokoo for Karasawa after 14:00.

Camping: There is a designated campsite at Karasawa for walkers carrying their own camping equipment. Mountain temperatures can fall dramatically overnight, particularly during autumn, so bring a proper mountain sleeping bag, insulated mat and suitable shelter rather than treating this like low-level summer camping. Check the current campsite arrangements and charges before travelling.

2026 Yokoo safety gate: In 2026 a mountain-safety awareness gate is operating at the Yokoo trailhead during selected summer and autumn periods. Walkers are asked to complete a preparation and rules checklist covering their equipment, route planning and readiness for the mountains. Poorly equipped walkers or those attempting to enter the mountains too late may be advised not to continue.

Climbing plan: Nagano Prefecture requires a climbing plan for people using designated mountain trails. Prepare your route in advance, share your plans with somebody who is not on the walk and complete any required registration before entering the mountain section beyond Yokoo.

Food, water and cash: There are huts and facilities at several useful points including Tokusawa, Yokoo and Karasawa during their operating seasons, making food and drinks easier to obtain than on many remote mountain routes. Don’t depend entirely on them, though; carry enough food and water for your planned day. Kamikōchi does not have an ATM, so arrive with sufficient Japanese yen for huts, food, drinks, toilets, camping and unexpected expenses.

Weather and clothing: Conditions in the valley can be completely different from those around 2,300m in Karasawa. Carry waterproofs, insulating layers, hat and gloves even when Kamikōchi is warm. A headtorch, first-aid kit, offline map/GPX and charged phone or power bank should also be part of your normal mountain kit.

Navigation: The standard trail is established and generally straightforward to follow, but this is still a mountain environment. Carry the GPX or another offline map rather than relying solely on signs or mobile reception.

Day hiking: A one-day return involves more than 30 km and approximately 1,410m of cumulative ascent, as well as needing to catch transport from Kamikōchi afterwards. Only consider it if you have the fitness, experience, conditions and very early start to make the timings comfortable. For most walkers, spending a night in Karasawa turns the route into a far more enjoyable mountain experience.

Below are 3 ideas for trips, transfers and tours around Kamikochi / the Japan Alps, with GetYourGuide offering great discounts and availability + Much more!

Japanese Alps (Kamikochi to Karasawa) FAQs

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