Complete Guide to Karuizawa: Comparison of Shinkansen, Bus, and Car

Nestled in the mountains of Nagano Prefecture, Karuizawa is one of Japan’s most charming mountain resort towns, offering fresh air, beautiful scenery, and a relaxed, upscale atmosphere.

This Karuizawa Travel Guide covers everything you need to know, from how to get there to what to expect from the weather. We’ll also compare different transportation options—shinkansen, bus, and car—so you can choose the best way to reach this scenic destination.

Karuizawa’s timeless appeal

Karuizawa is a destination that welcomes visitors year-round. Whether you’re drawn to its snowy slopes in winter, lush summer forests, or the amber-hued beauty of autumn, this mountain town offers a refreshing break from urban life.

Sitting at an elevation of around 1,000 meters (3,280 feet), Karuizawa was first embraced by foreign residents in the late 19th century and has since evolved into a vibrant hub for seasonal activities. From hiking, cycling, and golf in the warmer months to skiing and ice skating in winter, the town offers something for every traveler. It is also easily accessible from Tokyo, with the Hokuriku Shinkansen railway line making the journey in just over an hour.

How to get to Karuizawa

Choosing the right mode of transport can make all the difference in how you start your trip. It ensures you arrive relaxed and ready to enjoy everything Karuizawa has to offer.

There are three main ways to travel from Tokyo to Karuizawa: by Shinkansen, bus, or car. The best option depends on your budget, travel style, and priorities.

If you love soaking in every moment of the journey, enjoying scenic routes, and immersing yourself in local experiences, one traveling option might suit you better. If you’re traveling with family and prefer comfort and speed, another might be ideal. And if you’re on a solo trip, balancing budget and convenience, there’s a way to make it work without compromising on either.

No matter how you choose to get there, once you arrive in Karuizawa, you are guaranteed to be surrounded by breathtaking beauty. Here’s a closer look at each option to help you make the best choice for a smooth and stress-free journey.

Is shinkansen the fastest way to reach Karuizawa?

Designed for speed and efficiency, The Hokuriku Shinkansen railway line offers a speedy connection between the capital and some of Japan’s most scenic and culturally rich areas.

The Shinkansen connects Tokyo Station to Karuizawa Station in approximately an hour and a half.

The Hokuriku Shinkansen starts its journey at Tokyo Station and then moves to Ueno and Omiya. From there, it passes through Kumagaya, Honjo-Waseda, Takasaki, and Annaka-Haruna before finally arriving in Karuizawa.

With the Japan Rail Pass, travelers have the option to choose between standard seating or the more premium Green Car seating.

Japan Rail Pass explained

The Japan Rail Pass, often referred to as the JR Pass is a special ticket designed for foreign visitors traveling long distances across Japan. It allows unlimited travel on JR trains for a duration of one, two, or three weeks. The Japan Rail Pass comes in two options – Ordinary and Green Car.

Green Car vs. Ordinary

Green Car and Ordinary offer different levels of comfort for travelers. Green Car provides more spacious seating, extra legroom, and a quieter atmosphere. This makes it a great option for families looking for a stress-free journey or business travelers who want a comfortable and quiet space to prepare for their meetings. These premium seats are available on most Shinkansen and limited express trains, as well as a few local trains.

The Green Car pass became more expensive after a price increase in late 2023, but it remains a good choice for travelers who value convenience and unlimited train travel without the hassle of purchasing separate tickets.

On the other hand, ordinary seats are a more budget-friendly choice. If you’re a solo traveler or don’t mind a livelier atmosphere with a bit less space, the ordinary car provides a perfectly comfortable and cost-effective way to enjoy the journey.

If you’re traveling with children, there’s good news—children aged 6 to 11 can ride for half the price. This makes it easier for families to explore without stretching the budget.

Is a bus your best bet for an affordable trip to Karuizawa?

If you are looking for a budget-friendly way to reach Karuizawa, taking the highway bus is a great option. With five trips running daily between Tokyo and Karuizawa, you have plenty of chances to plan your journey at a convenient time.

The bus ride takes about 3 hours, giving you a chance to sit back, relax, and enjoy the passing scenery. Ticket prices range from 2,300 to 2,900 JPY, depending on the day you travel.

You can book your seat in advance through its online reservation platform to avoid last-minute stress.

With direct departures from major stations, it is a hassle-free way to reach the destination without switching trains or worrying about complicated transfers. This is especially useful for foreign travelers, as navigating different train lines can be tricky when faced with a language barrier.

Many long-distance buses also provide reclining seats and onboard restrooms, ensuring a more comfortable ride. If you’re carrying bulky luggage, most buses have spacious storage compartments, so you won’t have to struggle with overhead racks.

That said, taking the bus does require more patience. The journey takes over three times longer than the Shinkansen, and traffic conditions can sometimes lead to delays. Since there are fewer departures compared to trains, flexibility is a bit limited as well. For those who don’t mind a slower pace, the bus remains a practical and cost-effective way to reach Karuizawa.

Reaching Karuizawa’s must-see spots with ease

If your destination is a bit farther from JR Karuizawa Station, hopping on a local bus is an easy way to get there.

Renting a bike is another fantastic option if you want to travel on your own schedule. You’ll find plenty of rental shops near Karuizawa Station, making it easy to grab one and discover the town’s charming streets.

Just a heads-up—parking in front of shops and cafés on Old Karuizawa Ginza Street isn’t allowed, so be sure to use the free bicycle parking areas nearby.

If you prefer a more private mode of transport, taxis are an option. However, they tend to be pricey, so unless you’re short on time or need a more direct route, they may not be the best choice for getting around.

Is driving the most flexible option?

With a car, you can take detours and enjoy the scenic countryside along the way. The drive takes around 2.5 to 3 hours, following the Kanetsu Expressway and National Route 18, making for a smooth and enjoyable road trip.

If you’re traveling with friends or family instead of going solo, renting a car can be a smart choice. Splitting the rental cost and fuel can make the rented car a budget-friendly option.

Plus, having a car allows easy access to beautiful spots outside the main town, like Onioshidashi Park or the stunning Shiraito Falls.

Onioshidashi Park

Onioshidashi Park is a striking natural wonder shaped by the powerful eruption of Mount Asama in 1783. The park has an almost otherworldly scene with volcanic rocks stretching across the terrain. Though technically located in Gunma Prefecture, it’s a popular stop for those visiting Karuizawa.

Beyond its dramatic rock formations, the park offers panoramic views of the surrounding countryside and Mount Asama on clear days. At the center of the park, you’ll find a peaceful temple dedicated to Kannon, the Buddhist Goddess of Mercy. Kids will enjoy wandering through the unique rock formations, while adults can take in the cultural and historical importance of the site.

Shiraito Falls

Just a short drive from Karuizawa, Shiraito Falls is a spot known for its delicate streams of water cascading over the rock face. Unlike powerful waterfalls, this one creates a curtain-like effect, earning its name “White Thread Falls.”

Stretching about 150 meters wide and standing 20 meters tall, it offers a peaceful escape into nature. The scenery is beautiful year-round, but autumn is especially enchanting when the surrounding leaves turn brilliant shades of red and gold.

Things to keep in mind before renting a car

Driving comes with a few extra costs. Expressway tolls can range from 4,000 to 5,000 JPY, and fuel expenses depend on your route. Some hotels and tourist spots also charge for parking. Traffic can be another downside, especially during peak seasons when congestion may slow things down.

Karuizawa weather and best time to visit

Karuizawa’s weather varies significantly across the seasons, making it an appealing destination year-round.

Spring (March-May)

As the snow melts away, Karuizawa welcomes spring with mild temperatures ranging from 5°C to 18°C (41°F to 64°F). April is the perfect time to see cherry blossoms in full bloom, while the comfortable weather makes hiking a great way to explore the area.

Summer (June–August)

Unlike the sweltering heat in Tokyo, Karuizawa stays pleasantly cool, with temperatures between 15°C and 28°C (59°F to 82°F). It’s an ideal season for cycling, exploring nature trails, or simply enjoying the refreshing mountain air.

Autumn (September–November)

If you love fall colors, plan your visit in October when Karuizawa’s landscapes transform into shades of red, orange, and gold. With temperatures ranging from 8°C to 20°C (46°F to 68°F), it’s a fantastic time for scenic walks and photography.

Winter (December–February)

Winter brings a magical touch to Karuizawa, with temperatures dropping to -5°C (23°F). Skiing at Karuizawa Prince Hotel Ski Resort is a must, and the town’s festive lights create a cozy holiday atmosphere.

No matter when you visit, Karuizawa offers something special in every season!

Top attractions in Karuizawa

Kumoba Pond

Often called “Swan Lake,” Kumoba Pond is a peaceful escape, perfect for a relaxing walk or capturing stunning photos—especially in autumn when the trees reflect beautifully on the water.

Karuizawa Prince Shopping Plaza

If you love shopping, Karuizawa Prince Shopping Plaza is a must-visit place. It features a mix of international and Japanese brands, along with restaurants and cafes where you can take a break between shopping sprees.

Old Karuizawa Ginza Street

Old Karuizawa Ginza Street is full of cozy cafes, unique boutiques, and souvenir shops selling local specialties. It’s the perfect spot to soak in Karuizawa’s lively yet relaxed atmosphere.

Karuizawa New Art Museum

Karuizawa New Art Museum showcases both Japanese and international contemporary art. The first floor has a free exhibition space, while the paid section upstairs features renowned artists. With helpful staff and a creative atmosphere, it’s a great place to discover art through the lens of a different culture.

Karuizawa Chocolate Factory

If you’re a fan of unique sweets, don’t miss out on the delightful confections crafted with locally sourced ingredients. Many of these treats are freshly made in-store, giving visitors a chance to see the creation process through large glass panels. Given the region’s reputation for exceptional fruit, the apple-infused variety is a definite must-try!

Experience the taste of Karuizawa

Whatever travel option you choose, don’t forget to indulge in the local cuisine. Even if you take the longer route to save on costs, the delicious flavors of Karuizawa will make you forget any travel fatigue. Karuizawa is a food lover’s paradise!

By following this guide, you’ll have a clear comparison of travel options to Karuizawa. Being mindful of local customs enhances your travel experience and helps you connect with the culture.

Embrace the journey, travel thoughtfully, and enjoy every moment in Japan!