Hirayu and Kamikochi: Our Accidental Swiss Alps in Japan

I stumbled across a friend’s Instagram post last year showing her hiking through what looked straight out of the Swiss Alps—only it was in Japan. It featured a pristine, crystal-clear river winding through lush valleys with dramatic, jagged mountains looming in the background. As a total sucker for this kind of scenery, I quickly tracked it down: that heavenly spot was Kamikochi. I immediately made a mental note to put it on our radar if we ever made it back to Japan. That return trip came much faster than anticipated (thanks to Alyssa’s math competition detour). But as it turned out, Kamikochi was the ultimate, crowd-free alpine escape to outsmart Japan’s brutal summer heatwave.

What is Kamikochi?

Sitting high in the Northern Alps within Nagano Prefecture’s Chubu Sangaku National Park, Kamikochi is a protected mountain plateau prized for its untouched wilderness. It is famous for pristine alpine rivers, active volcanoes, and zero private cars allowed—meaning the air is crisp, the nature is pristine, and you can actually hear yourself think (unless your family is staging a trail strike, more on that in a minute).

How to Get to Kamikochi from Tokyo

Since no trains run directly into the valley, getting there requires a bit of logistical maneuvering:

• By Train & Bus Combo (Most Popular): Take the JR Azusa Limited Express train from Shinjuku Station to Matsumoto Station (about 2.5 hours). From Matsumoto, switch to the Matsumoto Dentetsu Kamikochi Line train to Shin-Shimashima Station (about 30 minutes), and finally catch a direct alp-bound highway bus straight to Kamikochi (about 1 hour).
• Direct Highway Bus: You can also catch an overnight or daytime highway bus (like the Alpico Kokusai Kotsu lines) directly from Shinjuku Expressway Bus Terminal straight to Kamikochi, skipping the train transfers entirely.

Where to Base Yourself: Choosing Hirayu Onsen

When planning this leg, my initial instinct was to stay in Matsumoto. After all, you can take a direct JR train straight from Shinjuku. But then reality hit: Matsumoto is still down in the valley. It would be just as sweltering as Tokyo, and we would still face a grueling 1 to 1.5-hour bus ride just to reach Kamikochi in the morning and back. Scrapped that idea instantly.

I then started hunting for towns within a breezy 30-minute bus ride. When Hirayu Onsen popped up, the magic word Onsen instantly captured my attention. Plus, sitting high up in the mountain area meant naturally cooler weather, and the town is legendary for its hot springs. The thought of staying in a traditional ryokan with multi-course kaiseki dinners and soaking in healing mineral waters every night was entirely irresistible.

Could we have stayed directly in Kamikochi? Sure, but dragging our heavy suitcases from the Kamikochi Bus Terminal to a valley lodge sounded like my personal nightmare. Choosing Hirayu Onsen as our base was the ultimate winning move.

Alternative Base Towns and Their Bus Travel Times to Kamikochi:

• Hirayu Onsen (Gifu Prefecture): ~25 to 30 minutes by bus. The closest and most convenient mountain base.
• Sawando (Nagano Prefecture): ~30 minutes by bus. A practical parking hub if you are driving, though quieter with fewer ryokan options.
• Takayama (Gifu Prefecture): ~1 hour by bus. A gorgeous historic merchant town, but a bit far if your main priority is getting an early jump on the trails.
• Matsumoto (Nagano Prefecture): ~1 to 1.5 hours by bus. Great urban amenities, but far lower in elevation and much warmer.

Where to Stay in Kamikochi

If you decide you do want to wake up right inside the national park without taking a morning bus from the outside towns, Kamikochi offers a few iconic lodge options. Just keep in mind that you will need to pack light or arrange luggage forwarding, as private cars aren’t allowed and you’ll be walking from the bus terminal!

• The Kamikochi Imperial Hotel: The grand dame of the valley. Styled like a classic Swiss mountain chalet with a red roof, it offers upscale western-style rooms, fine dining, and an unbeatable historic ambiance right near the river.
• Gosenjaku Hotel: Located right by the famous Kappa Bridge, this is a premium option blending traditional Japanese hospitality with modern luxury. It features gorgeous contemporary rooms and fantastic dining overlooking the peaks.
• Nishi-itaya Yamashiroya / Tokusawaen: For hikers looking for something more traditional or rustic, historic mountain lodges like these offer authentic tatami stays, communal baths, and a true backcountry alpine experience.

Where to Eat in Kamikochi

Hiking through pristine alpine trails works up a serious appetite, and while Kamikochi is a protected national park, it actually boasts some fantastic culinary pit stops ranging from cozy trailside huts to hotel dining.

• Kamonjigoya: Located right next to the mystical Myojin Pond, this rustic, smoky wooden hut is an absolute must-visit. They specialize in rustic local mountain fare, most famously their iwana (salt-grilled river fish) roasted slowly over an open hearth, paired with piping hot bowls of soba.
• Cinq Trois (Kappa Bridge Hub): Situated right by the iconic bridge, this cafe is the ultimate spot to refuel with sweet treats. After miles of trekking, their soft-serve ice cream and freshly baked apple pie are absolute heaven.
• Gosenjaku Hotel Restaurant / Lounge: If you are looking for a slightly more upscale sit-down meal or a relaxing coffee break with a view, the dining rooms and terrace cafes near Kappa Bridge serve refined dishes highlighting local Shinshu beef and seasonal mountain vegetables.
• Kamikochi Bus Terminal Cafeteria & Snack Stands: If you are in a rush or want something quick before boarding your bus back, the main terminal area features casual food counters serving steaming bowls of ramen, udon, and curry rice.

Our Epic Day Trip to Kamikochi

We kicked off our morning briskly, walking to the Hirayu bus terminal right at 8:00 AM to catch the 8:30 AM bus. You cannot reserve these tickets in advance; you buy your return tickets on the spot from the vending machine and line up for the buses, which depart roughly every 30 minutes.

• Bus Schedule Tip: The earliest buses departing for Kamikochi from Hirayu typically start rolling around 6:00 AM, while the last return bus leaving Kamikochi back to Hirayu usually departs around 6:00 PM (though always double-check the seasonal timetable on the day!).

We made our first tactical stop at the Taisho Pond (Taisho-ike) Bus Stop, joining nearly everyone else on the bus who wanted to kick off their trek right there.

Trek #1: Taisho Pond to Kappa Bridge (4.5 km)

Our hike began by soaking in the iconic, mirror-like views of the pond with the active volcano Mt. Yakedake reflecting dramatically in the water. From there, we were technically supposed to choose between the shaded, quiet woodland Forest Course and the open, scenic riverside Azusa River Course boardwalks. Unfortunately, the Azusa River boardwalk was closed for maintenance, so the forest path became our highway.

Before diving deep into the trees, we had to remember a very important local resident: the wild Kamikochi bears! To prepare, we had smartly picked up a bear bell while we were still back in Hirayu and securely attached the jangling little gadget to our backpacks so it rang merrily with every step we took. Looking around, we noticed we were in good company—plenty of fellow hikers had their own bells chiming away. Along the winding path, we frequently passed informational posters detailing the exact dates and locations of the last bear sightings in the area. Plus, strategically hung bear bells dotted the route at regular intervals, which hikers are expected to ring loudly to alert any nearby bears that humans are passing through.

This first 4.5 km flat stretch was a breeze. Once we reached the Kappa Bridge hub, we took a well-deserved break to use the restrooms and reward ourselves with soft-serve ice cream and apple pie at the Cinq Trois cafe.

Trek #2: Kappa Bridge to Myojin Pond (5.5 km)

Energized by sugar, we launched into our second leg toward Myojin Pond, taking the path on the right side of the Azusa River. Unlike the flat first leg, this 5.5 km trek got a bit more hilly and rugged.

Right about 1 kilometer shy of our goal, Hubby and Alyssa officially launched a labor strike against me, lol. They flat-out refused to move another inch until they had a mandatory sit-down break. Families, am I right?

We had another break when we reached the mountain lodge. Alyssa and I bought cold water from the vending machine and Hubbie took a nap under the tree lol.

We survived the mutiny, crossed the bridge, and stumbled upon Kamonjigoya, a rustic, incredibly cozy restaurant right next to the mystical Myojin Pond. It matched the alpine atmosphere to absolute perfection. We cozied up inside for a hearty lunch of hot soba noodles and salt-grilled river fish.

The Return Trek (5 km)

After lunch, we walked back toward Kappa Bridge along the opposite side of the river. This section passes right through the lush, peaceful Dakesawa Marsh, and I have to admit—I liked this path way better than the outbound side.

Close to 5:00 PM, with full smiles on our faces and weary legs, we strolled back through the Kappa Bridge souvenir shops and caught the bus back to Hirayu. I have been longing for a proper hike in deep, untouched nature, and Kamikochi satisfied that craving in every possible way.

Hirayu Onsen & Our Ryokan Oasis

Hirayu Onsen is the oldest hot spring resort area in the mountainous Okuhida region, famous for its abundant thermal waters bubbling right out of the earth. Beyond soaking, it serves as the ultimate logistical gateway to Kamikochi and the Northern Alps.

We stayed at Okada Ryokan Warakutei, a traditional Japanese inn that completely stole our hearts. We booked a classic tatami room where our futon beds were laid out for us every evening. The package included a traditional breakfast and a multi-course set dinner, which was easily the culinary highlight of our stay. I am a massive fan of authentic ryokan hospitality, and the fact that the property features its own gorgeous outdoor onsen sealed the deal.

Alyssa and I hit the onsen every single night without fail, lol. While Okada Ryokan offers private family baths for a fee, we stuck to the main public baths, which are much larger and feature both indoor pools and open-air outdoor rock baths with varying water temperatures to suit your tolerance.

Quick Onsen Etiquette & Tips for Beginners:

• Strip down completely: Swimsuits are strictly banned in traditional public onsen. Yes, it feels intimidating the first time, but trust me—nobody is looking at you!
• Wash before you soak: Always sit down at the wash stations provided to thoroughly scrub and rinse yourself before stepping foot into the communal baths.
• Keep the towel out of the water: Put your small modesty towel on your head or set it safely on the edge of the tub—never let it touch the actual hot spring water.
• Hydrate: The mineral-rich water and high heat will dehydrate you quickly, so chug plenty of water or Pocari Sweat afterward.

How to Get to Hirayu Onsen from Tokyo

• Direct highway bus from Shinjuku Expressway Bus Terminal all the way to Hirayu Onsen (about 4.5 hours total, saving you train transfers). Ticket can be booked in advance on their website. This is the best mode of transport: the bus is very comfortable. Spacious room for the leg and an inside toilet. They made 2 stops at 20 minutes each. Sufficient for toilet break and grab some snack and beverage.
• Take the JR Chuo Line Limited Express from Shinjuku to Matsumoto, then transfer to the Nohi Bus heading directly across the mountains to Hirayu Onsen (roughly 1.5 hours from Matsumoto). The Bus station is just accross from the train station.

Summary

Trading the sweltering city streets for the crisp mountain air of Kamikochi and the steamy healing waters of Hirayu Onsen proved to be the absolute plot twist our Japan summer trip needed. While Japan’s summer humidity can test even the most patient traveler, escaping to the alpine peaks, ringing bear bells down the trail, eating salt-grilled river fish by a mystical pond, and soaking in an outdoor onsen under the cool night sky made every drop of sweat entirely worth it.