Japan is known for its futuristic cities and historic temples. Yet the archipelago is also largely made up of forests and mountains. This destination offers numerous trails for hiking enthusiasts. Setting off on a trek in Japan is therefore an excellent way to explore the country, provided you choose your region according to the season.
Why go trekking in Japan?
A wealth of routes
Japan has many regions where trekking is possible. Central Honshu, the main island, is home to the Japanese Alps. Here, you will find spectacular routes with peaks rising above 3,000 metres and steep-sided valleys.
The country also has ancient pilgrimage routes. The Kumano Kodo winds through forests, shrines and hot-spring villages, while the Nakasendo lets you walk an old route that historically linked Tokyo to Kyoto. Further north, Hokkaido offers a different experience, with wilderness areas, volcanoes and vast national parks.
A cultural experience
A trek in Japan lets you fully immerse yourself in the local culture. The routes are waymarked, and mountain huts are plentiful. Respect for nature is deeply rooted in local customs. The Japanese take pride in staying on the trails, respecting other walkers and preserving natural areas. Finally, the country has an undeniable asset: onsen. After several hours of walking, these hot springs are ideal for relaxing.
The 4 seasons for trekking in Japan
There is no single ideal season for trekking in Japan. Depending on the region and altitude, the climate varies greatly. Each season is therefore more or less suitable for certain parts of the archipelago.
| Season | Conditions for a trek | Key points |
|---|---|---|
| Spring | Pleasant temperatures, but snow is still present at altitude. Wildflower season. | Pleasant for mid-altitude routes, but high peaks may remain inaccessible. |
| Summer | Hot and humid in the lowlands. Cooler conditions in the mountains. | A good time for the Japanese Alps and Hokkaido. Watch out for the rainy season and typhoons. |
| Autumn | Cool temperatures and vibrant autumn colours. | One of the best times for walking. |
| Winter | Heavy snowfall in Hokkaido and the mountain ranges. | For suitable routes and properly equipped hikers only. Some mountain roads are closed. |
Key routes by season
Spring
Mild temperatures make the Kumano Kodo one of the best trekking routes. This pilgrimage trail, listed as a UNESCO World Heritage Site, crosses the Kii Peninsula. It has been walked for over 1,000 years and features oji, small shrines associated with the pilgrimage. The route alternates between forest trails, paved sections, small villages and paths lined with cedars and cypresses.
The Nakahechi is the iconic route of the Kumano Kodo. The full route to Nachi covers around 70 km and can be completed in 5 to 7 days. However, the most popular section is shorter. It links Takijiri-Ori to the Kumano Hongu Taisha Grand Shrine. This 40 km route is usually completed in 2 to 3 days.
Summer
Japanese summer is often marked by intense heat. At this time of year, Hokkaido is probably the most appealing option. Located in the north, the island has a cooler climate than the rest of the archipelago.
Daisetsuzan National Park, Japan's largest, offers plenty of hiking opportunities. It features accessible peaks, wild landscapes, volcanic terrain and vast alpine areas. Summer also puts on a remarkable display, as melting snow gives way to carpets of wildflowers.
Autumn
The vibrant colours of autumn are particularly striking in the Japanese Alps. At this time of year, the Kita Alps (Northern Alps) offer some of the country's most impressive mountain scenery. The Tateyama-Kurobe Alpine Route provides access to Murodo, the starting point for several hikes in the Northern Alps.
In the Japanese Alps, you can stay in mountain huts called yamagoya. Unlike a traditional mountain refuge, these buildings offer relatively comfortable facilities, with shared sleeping quarters and sometimes hot meals.
Winter
Winter is not the best season for trekking in Japan. Heavy snow, sub-zero temperatures, avalanches and changeable weather make many routes inaccessible or dangerous. Winter trekking is therefore for experienced, well-equipped mountaineers.
At this time of year, ski touring is a good alternative to trekking. It is highly developed in Hokkaido and the Japanese Alps. The Niseko, Furano and Hakuba resorts are also very popular.
How should you gear up for each season?
Spring and autumn
In spring and autumn, it is fairly easy to gear up for a trek in Japan. The classic layering system works well. It involves wearing a breathable base layer to wick away sweat, an insulating mid-layer and an outer layer to protect against the elements.
For your base layer, we recommend choosing merino wool T-shirts. They help regulate temperature, wick away moisture and limit odours. Your second layer can be a lightweight fleece or a thin down jacket. Finally, the third layer should be a waterproof, windproof jacket.
Summer
In Japan, summer is very hot and especially humid, particularly on Honshu. For hiking, choose clothing that wicks sweat away quickly. Opt for breathable technical T-shirts and lightweight, quick-drying shorts or trousers. Good sun protection is also essential. UV-protective clothing, caps or hats, and sunglasses are must-haves.
On the other hand, early summer is marked by the rainy season. Showers can be sudden. Pack a lightweight waterproof layer to slip into your hiking backpack.
Hiking boots
Your choice of footwear depends on the terrain. If you are heading for the Kumano Kodo, choose travel shoes that are lightweight and waterproof. The trail is not very technical but can be damp at times. It alternates between earth, roots, stones and paved sections.
For a trek in the Japanese Alps, mountain boots are essential. Routes run at high altitude and may include rocky terrain, steep sections and changeable weather conditions. Choose high-cut hiking boots with a sole offering good grip.
Specific accessories for a trek in Japan
In Japan, many trails are uneven. Trekking poles are useful, especially on long descents and the wet paths of the Kumano Kodo. Given the possibility of rain, a waterproof pack cover is also essential. At high altitude, gloves and hats are recommended, even in autumn. In the Japanese Alps, temperatures can drop sharply.
Bears are found in several mountainous regions of Japan. Asian black bears live on Honshu and Shikoku, while Hokkaido is home to brown bears. To avoid surprise encounters, bear bells are widely used. They are attached to a hiking backpack to signal your presence.
Practical advice for a trek in Japan
Yamagoya
Yamagoya, Japanese mountain huts, are a valuable asset for multi-day treks. On popular routes and during peak season, places can fill up quickly. Booking in advance then becomes essential. Packages generally include a dormitory bed, dinner and breakfast.
Onsen
Onsen are a real experience in Japan. Some routes, such as the Kumano Kodo, also pass close to hot springs or villages renowned for their baths. It is the ideal opportunity to relax after a long day of walking. Remember to pack a small microfibre towel.
In traditional onsen, men and women are separated. You must wash before entering the bath naked. If you have tattoos, you should also check the restrictions.
Transport options
Transport in Japan is extremely well developed. The rail network makes it much easier to reach mountain regions. In this case, the JR Pass, a national rail pass, can be worthwhile. It is useful for combining several train journeys, particularly on Japan Railways lines and certain high-speed Shinkansen trains.
For treks, you may sometimes need to combine trains with local buses to reach trailheads, the starting points of hiking trails.
Useful apps
Several apps can help you find your way around Japan. Yamap provides maps, routes and trail information. It is particularly useful when taking less well-known routes. For signage, Google Translate is very useful. Its camera translation feature makes it easier to understand signs, bus timetables and local instructions.
A trek in Japan offers a different way to explore the archipelago, from the Kumano Kodo pilgrimage trails to the mountain landscapes of the Japanese Alps. While spring and autumn generally offer the most pleasant conditions, each season has its own advantages. The most important thing is to choose your route and equipment according to the region and the weather.
