20 Travel Guide

Editorial note: The input '20, Japan' most likely refers to Nagano Prefecture, which carries the JIS regional code 20 in Japan's standardized prefecture numbering. This guide covers Nagano Prefecture accordingly. If you intended a different destination, please verify and consult the relevant guide.

Nagano Prefecture sits in the mountainous interior of Honshu, Japan's main island, surrounded by the Japanese Alps and several other significant mountain ranges. It is one of Japan's largest landlocked prefectures and one of only eight prefectures with no coastline. Elevations across the region are among the highest in the country, lending it a notably cooler climate than much of Japan.

Nagano is broadly recognized for hosting the 1998 Winter Olympic Games, which brought international attention to its ski resorts and mountain infrastructure. Beyond winter sports, the prefecture draws visitors year-round for its historic post towns, Buddhist temples, hot spring (onsen) towns, and exceptional natural scenery including national and quasi-national parks.

The prefectural capital is Nagano City, home to the famous Zenkoji Temple, one of Japan's most visited and historically significant Buddhist pilgrimage sites. Other well-known areas include Matsumoto, Hakuba, Karuizawa, Kamikochi, and the Kiso Valley, each offering a distinct character and set of experiences.

Visas

Entry requirements for Japan vary by nationality and are subject to change. For current visa information, consult TravelerPulse's Visas section and the official website of Japan's Ministry of Foreign Affairs or your nearest Japanese embassy or consulate.

Health & Vaccinations

No specific vaccinations are required for entry into Japan. Travelers should ensure routine vaccinations are up to date and consult a travel health professional before departure. Tap water is safe to drink throughout Nagano Prefecture.

Travel Insurance

Travel insurance that includes medical coverage and mountain rescue is strongly recommended, particularly if you plan to ski, hike, or engage in other outdoor activities in the Japanese Alps. Mountain rescue operations in Japan can incur costs.

What to Pack

• Nagano's mountain climate means temperatures can drop sharply even in summer at altitude. Layers are advisable year-round.
• Winter visitors should bring or plan to rent warm, waterproof clothing suitable for heavy snowfall.
• Comfortable walking shoes are essential for temple grounds, cobblestone post towns, and hiking trails.
• Cash is widely used in rural and smaller mountain areas; do not rely solely on cards.

By Shinkansen

Nagano City is served by the Hokuriku Shinkansen (formerly the Nagano Shinkansen line, extended after 1998), which connects it to Tokyo (Nagano Station) in approximately 80–90 minutes. This is the most common arrival route for international visitors. Verify current timetables and fares with JR East or your rail pass provider.

By Limited Express Train

Matsumoto, Nagano's second-largest city, is accessible from Tokyo's Shinjuku Station via the JR Azusa limited express service (approximately 2.5–3 hours). Travelers arriving from Nagoya can reach Matsumoto via the JR Shinano limited express. Verify schedules and journey times before travel.

By Highway Bus

Highway buses connect Nagano Prefecture's major towns to Tokyo (Shinjuku), Osaka, Nagoya, and other major cities. Bus travel is generally the most economical option and serves destinations not covered by rail. Several operators run these routes; book in advance during peak seasons (Golden Week, Obon, ski season, autumn foliage).

By Car

Driving into Nagano Prefecture is practical for visitors who wish to explore rural areas, the Kiso Valley post towns, or smaller onsen resorts. The Chuo Expressway connects the region to Tokyo and Nagoya. Be aware that mountain roads can be subject to winter closures and require winter tires or chains during snow season; verify conditions locally before travel.

Local Trains and Buses

Nagano Prefecture has a network of local JR and private railway lines connecting major towns, but service can be infrequent in rural areas. The Matsumoto Dentetsu (Alpico) line connects Matsumoto to Shinshimashima, a gateway to Kamikochi. Seasonal shuttle bus services operate between Shinshimashima (or Matsumoto) and Kamikochi, as private vehicles are prohibited inside the Kamikochi valley. Verify operating periods and schedules, as they are seasonal.

Rental Car

A rental car offers the greatest flexibility for exploring smaller villages, hot spring towns, and the Kiso Valley. Major rental agencies operate at Nagano Station, Matsumoto Station, and the local airports. An International Driving Permit (IDP) is required alongside your home country license; verify your country's eligibility before travel.

Taxis and Ride Services

Taxis are available in Nagano City, Matsumoto, and Karuizawa but can be expensive for longer distances. Conventional ride-hailing apps widely used in other countries have limited availability in rural Japan; verify locally.

Japan Rail Pass Considerations

The JR Pass covers Shinkansen travel to Nagano City and various JR local lines in the prefecture, but does not cover private railways or most resort shuttle buses. Check pass coverage carefully against your itinerary.

Zenkoji Temple, Nagano City

One of Japan's most significant and visited Buddhist pilgrimage sites, Zenkoji draws millions of visitors annually. The main hall houses a famous hidden Buddha image (Hibutsu) that is not normally displayed to the public; special unveilings (Gokaicho) occur periodically. The temple grounds and the approach street (Omotesando) lined with shops and inns are worth exploring in their own right.

Matsumoto Castle

Matsumoto's 16th-century castle is one of Japan's few surviving original castles (as opposed to modern reconstructions) and is designated a National Treasure. The castle's distinctive black-and-white exterior and moat setting make it among the most photographed structures in the country. Interiors are open to visitors; confirm current hours and admission fees before visiting.

Kamikochi

Kamikochi is a protected highland valley in the Northern Japan Alps, accessible only by bus or on foot during its open season (approximately late April to mid-November; verify annually). The valley is known for its river scenery, views of the Hotaka mountain range, and well-maintained walking trails ranging from gentle riverside walks to more demanding routes. Private vehicles are banned; access is by shuttle bus only.

Kiso Valley Post Towns

The Kiso Valley contains several well-preserved Edo-period post towns (shukuba-machi) along the historic Nakasendo highway. Tsumago and Magome are the most visited and are connected by a popular 8-kilometer hiking trail through forest and farmland. Restrictions on modern signage and overhead wires in some areas contribute to an unusually preserved historical atmosphere.

Skiing and Winter Sports

Nagano Prefecture contains some of Japan's most internationally recognized ski resorts, including Hakuba Valley (which hosted multiple 1998 Olympic events), Shiga Kogen (Japan's largest interconnected ski area by some measures), Nozawa Onsen, and Myoko. Snow quality and depth can be exceptional, particularly in January and February. Verify resort opening dates, lift pass prices, and conditions through individual resort websites or verify locally.

Hot Springs (Onsen)

The prefecture has numerous onsen towns. Shirahone Onsen, Yudanaka Onsen (near Jigokudani, famous for snow monkeys), and Nozawa Onsen are among those with established reputations. Jigokudani Monkey Park, accessible from Yudanaka, is one of very few places in the world where wild Japanese macaques (snow monkeys) can be observed bathing in natural hot springs.

Karuizawa

A historic resort town near the Gunma border, Karuizawa is popular with domestic visitors and has been a retreat for artists, writers, and foreign residents since the Meiji era. It offers a mix of outdoor cycling and hiking trails, a preserved old Karuizawa shopping street, and proximity to Shiraito Falls and Usui Pass.

Regional Specialties

Nagano Prefecture has a distinct culinary identity shaped by its landlocked, mountainous geography and cold climate.

• Soba (buckwheat noodles): Nagano is regarded as one of Japan's premier soba-producing regions, with buckwheat cultivated at elevation. Togakushi-style soba (thin, served in small bundles) is a notable local variation.
• Oyaki: Traditional filled dumplings made from a wheat or buckwheat dough and stuffed with vegetables, nozawana (local pickled greens), or red bean paste. A common snack and street food.
• Nozawana pickles: A peppery green leaf vegetable preserved in brine, produced around Nozawa Onsen and widely available as a condiment and snack.
• Shinshu miso: Nagano is one of Japan's largest miso-producing regions. Shinshu miso is typically lighter in color and flavor than darker regional varieties.
• Basashi (horse sashimi): A regional specialty served in some traditional restaurants; relevant for visitors to be aware of if dietary preferences are a consideration.
• Sanzoku-yaki: A style of marinated, deep-fried chicken particularly associated with Matsumoto and the Chino area.
• Local sake and wine: The prefecture has a sake brewing tradition and a growing number of wineries in the Chikuma and Ina valleys. Verify current producers and tasting room access locally.

Dining Practicalities

Smaller restaurants in rural and mountain areas may have limited English menus. Plastic food displays or picture menus are common and useful for ordering. Many establishments in mountain resorts close during the off-season; verify before traveling specifically for dining.

Money

Japan remains a heavily cash-oriented society in many contexts, and Nagano Prefecture's rural areas and smaller businesses are no exception. ATMs at Japan Post offices and 7-Eleven convenience stores (Seven Bank ATMs) are generally reliable for international cards, but availability in very remote areas can be limited. Confirm ATM access before heading into less-populated mountain areas.

Internet and Connectivity

Wi-Fi is available at most hotels, larger ryokan, and some cafes, but coverage can be patchy in mountain valleys and on hiking trails. Consider renting a pocket Wi-Fi device or purchasing a data SIM on arrival in Japan if reliable connectivity is important to your trip. Major mobile carriers have limited coverage in some alpine areas.

Useful Apps and Resources

• Japan's official tourism body (JNTO) publishes practical travel information for foreign visitors. Verify current resources at the JNTO website.
• Hyperdia and the JR Route Search tool are widely used for train timetable planning.
• Google Maps has reasonable coverage of the region but verify routing for mountain roads locally.

Opening Hours and Seasonality

Many attractions, restaurants, and accommodation options in resort and mountain areas operate on seasonal schedules. Kamikochi is closed in winter; many ski resorts are closed in summer. Always verify operating dates directly with attractions or accommodations before planning around them.

Language

English signage and English-speaking staff are available at major tourist sites, Shinkansen stations, and larger hotels, but become less common in smaller towns and rural areas. A basic phrasebook or translation app is a practical asset. Japanese characters (hiragana, katakana, kanji) appear on most signage.

Nagano Prefecture is generally considered a safe destination. Japan's overall crime rates are low by international standards, though travelers should follow standard precautions regarding personal belongings.

Natural Hazards

The prefecture is mountainous and subject to natural hazards that deserve serious attention:

• Earthquakes: Japan is seismically active. Familiarize yourself with basic earthquake safety procedures. Follow instructions from accommodation staff and local authorities.
• Volcanic activity: Mount Ontake, on the Nagano-Gifu border, erupted in 2014 with fatalities. Check current volcanic alert levels for any active volcanic areas through the Japan Meteorological Agency (JMA) website before hiking nearby.
• Avalanche and mountain weather: Conditions in the Japanese Alps can change rapidly. Heed local warnings, stay on marked trails, and do not hike or ski in areas closed by authorities. Check weather and avalanche bulletins before backcountry activities.
• Summer thunderstorms: Afternoon thunderstorms are common in mountain areas in summer. Plan alpine activities for morning hours.

Emergency Contacts

Japan's emergency services can be reached via 110 (police) and 119 (fire and ambulance). Confirm these numbers are current before travel. Some prefectures have English-language emergency support lines; verify locally.

Temple and Shrine Etiquette

When visiting Zenkoji and other religious sites, dress modestly, speak quietly, and follow posted instructions. Some inner areas may require removal of shoes. Photography restrictions vary by location; look for posted signs.

Onsen Etiquette

Using public hot spring baths (onsen) follows specific customs that are important to know in advance. Visitors must shower thoroughly before entering the shared bath. Swimwear is not worn in traditional onsen (bathers are unclothed). Tattoos are prohibited at many onsen facilities, though some have begun to accommodate tattooed guests; verify policies individually before visiting.

Seasonal Festivals

Nagano Prefecture hosts numerous local matsuri (festivals) throughout the year. Gion Matsuri-style summer festivals, fire festivals in mountain villages, and the Nozawa Onsen Dosojin Fire Festival (held in January) are among events with established followings. Dates and formats can vary year to year; verify locally.

Respect for Nature and Trails

Kamikochi and the national park areas have explicit guidelines about staying on marked trails and not disturbing wildlife. Take all rubbish with you; public waste bins are scarce in Japanese parks. The principle of leaving no trace is consistent with local expectations.