Spanning the mountainous border of Iwate and Akita Prefectures, Hachimantai (八幡平) in Towada-Hachimantai National Park (十和田八幡平国立公園) is one of Northern Japan’s most spectacular nature destinations. From the towering 27-kilometer Hachimantai Aspite Line to volcanic mud baths at Goshogake Onsen and easy alpine hiking loops, this high-altitude haven offers year-round outdoor adventure. With plenty of alpine plants, sightseeing spots with superb views of the mountains, and hot spring resorts, Hachimantai is one of the premier tourist destinations in the Iwate prefecture. Beyond the spectacular summit views at 1,600 meters above sea level, one of Hachimantai’s most fascinating natural wonders is the scenery called Dragon Eye (ドラゴンアイ), which can only be seen from late May to early June each year!
Whether you are driving past panoramic mountain lookouts, relaxing in rustic hot springs, or navigating Tohoku as a plant-based traveler, this comprehensive guide covers Hachimantai’s best attractions, seasonal highlights, public transit options, and practical vegetarian dining tips.
The Attractions in Mt. Hachimantai
- A Quick Summary of the Attractions in Hachimantai
- How to Get to Hachimantai
- Driving the Hachimantai Aspite Line (八幡平アスピーテライン): Snow Corridor & Scenic Drive
- Hachimantai Mountaintop Rest House (八幡平山頂レストハウス): Trailhead & Amenities
- Hachimantai Mountaintop Promenade (八幡平山頂散策路): Scenic Marshland Walk
- Goshogake Nature Observation Trail (後生掛自然研究路): Mud Volcanoes & Geothermal Walk
- Goshogake Hot Spring Hotel (後生掛温泉): Traditional Volcanic Mud Bathing
- Hachimantai Jukai Line (八幡平樹海ライン): Forest Drive & Autumn Foliage
- What to Wear and Bring to Hachimantai National Park
- Festivals at Hachimantai
- Essential Vegetarian & Vegan Guide for Hachimantai
- Hachimantai FAQ
A Quick Summary of the Attractions in Hachimantai
| Attraction / Spot | Category | Best Season | Key Highlight / Feature | Time / Difficulty |
| Hachimantai Aspite Line | Scenic Drive | Late April–May & Late Sept–Oct | 27 km scenic toll-free highway, famous snow corridors & autumn foliage | Driving route |
| Mountaintop Rest House | Hub / Amenities | Mid-April to Early Nov | Main trailhead hub, souvenirs, restrooms, paid parking (500 JPY) | Facility stop |
| Ōbukazawa Observation Deck | Lookout | Early to Mid-October | Sunset viewpoint overlooking deep river valleys and gorges | Quick stop |
| Mountaintop Promenade | Hiking Trail | Late May to October | Easy loop connecting summit, Kagami-numa, and Hachiman-numa | ~1.5 hours (Easy–Mod) |
| Hachiman-Numa Marsh | Crater Lake | Spring snowmelt to Fall | Largest volcanic crater lake on Hachimantai with a lakefront shelter | Included in loop walk |
| Hachimantai Dragon Eye | Seasonal Spot | Late May to Early June | Rare turquoise snowmelt ring at Kagami-numa (2–3 week window) | 15-min walk from Rest House |
| Goshogake Nature Trail | Geothermal | Year-round access | Boiling mud pools, fumaroles, and Japan’s largest mud volcano | 30–45 min (Easy) |
| Goshogake Hot Spring Hotel | Onsen Resort | Year-round | Volcanic mud baths, box steam saunas, day-use entry (800 JPY) | 1–2 hours |
| Hachimantai Jukai Line | Scenic Drive | Mid-May & Late Sept–Oct | 15 km forest drive through virgin beech/birch forests | Driving route |
| Matsukawa Onsen | Onsen Village | Year-round | Rustic ryokans with historic, milky-white sulfur baths | Day bath / Stay |
How to Get to Hachimantai
While driving offers the most flexibility to stop at panoramic lookouts along the Hachimantai Aspite Line, seasonal bus services are also available from Morioka and Tazawako. Whether you plan to rent a car or rely on local buses, navigating Tohoku’s mountain transit takes a bit of planning.
For detailed bus timetables, driving routes, Aspite Line winter road closure dates, and rental car tips, check out our complete guide on How to Get to Hachimantai by Public Transport or Car.
Driving the Hachimantai Aspite Line (八幡平アスピーテライン): Snow Corridor & Scenic Drive
The Hachimantai Aspite Line is a toll-free 27 km winding driveway across Hachimantai. The toll-free 27 km winding driveway is the best route to drive through because of the attractions along the motorway. When it becomes accessible around mid-April, visitors can enjoy the magnificent snow corridor until around mid-May! From the fresh green of spring to the vivid colors of autumn, drivers will have a hard time keeping their attention on the road with surroundings this beautiful.
For more information, refer to our Hachimantai Aspite Line article.
Hachimantai Mountaintop Rest House (八幡平山頂レストハウス): Trailhead & Amenities
- Opening Hours: 9 am to 5 pm from mid-April to early November
- Facilities: Hachimantai information corner, toilet, resting space, souvenir shops, and restaurant (please note their broth and most sauce contains fish meat extracts. To confirm with the restaurant staff, please utilize the phrases in our Essential Japanese Phrases for Vegetarian article
Tip: The car park at the Rest House isn’t free. If you want to save some money, there is a free car park not too far from the Rest House.
Hachimantai Mountaintop Promenade (八幡平山頂散策路): Easy Alpine Hiking Loop
The Hachimantai Mountaintop Promenade is an easy hiking course that takes about 1.5 hours to return to the Hachimantai Mountaintop Rest House. The trailhead is just across the road from the Rest House’s car park.
The promenade will lead to the Hachimantai Mountaintop Observation Deck (八幡平山頂展望台) and the summit of Mt. Hachimantai. Along the track, there are also a couple of gorgeous marshes, including the Kagami-Numa Marsh (鏡沼), also known as the “Dragon Eye”!
If you refer to the map in the photo, the course is marked in red.
Hachiman-Numa Marsh (八幡沼): Volcanic Crater Lake
Hachiman Marsh is somewhat of a symbol of Hachimantai. As the Hachimantai Mountaintop Promenade pretty much goes around this marsh, you can enjoy its beauty from various angles.
In spring, the snow on the marsh begins to melt, revealing a partially frozen landscape. This sight attracts nature lovers from around the country to Hachimantai!
Hachimantai Dragon Eye (八幡平ドラゴンアイ): Spring Snowmelts Sight
Wondering what a “Dragon Eye” looks like? Come to Kagami-Numa Marsh (鏡沼) between mid-May and mid-June, and you may find out if you are lucky!
When the signs of spring begin to appear in Hachimantai, the snow on top of the marsh starts to melt. As the melting starts from the sides of the marsh, Kagami Marsh will, at some point, take on the shape of an “eye”!
The timing to see this eye and its color differs each year. So you will definitely need some luck to see a beautiful and clear “Dragon Eye”!
Tip: If you take the Hachimantai Shizen Sansaku Bus (八幡平自然散策バス), you can join the guided tour to Dragon Eye for free. Note that the tour is in Japanese only.
The marsh is only a 15-minute walk from Hachimantai Mountaintop Rest House and is quite close to Hachimantai Mountaintop Observation Deck.
Be sure to stay behind the rope when you get there, as it can be quite dangerous if you get too close.
Goshogake Nature Observation Trail (後生掛自然研究路): Mud Volcanoes & Geothermal Walk
In the western part of the Hachimantai Aspite Line, a trekking trail lets you see rare volcanic phenomena throughout. At the end of the trail is the Ōyu-Numa Marsh (大湯沼), which is filled with boiling springs. At the side of the marsh, there are also a lot of fumaroles and mud pods, which are a rare sight.
This trekking course also includes Japan’s biggest mud volcano, Daidorokazan (大泥火山). If you have time, definitely drop by this spot for this rare scene!
The Goshogake Onsen Ryokan is located at the trailhead of this trail. If you are driving, you can park in the car park in front of the ryokan.
Goshogake Hot Spring Hotel (後生掛温泉): Traditional Volcanic Mud Bathing
Japan is quite well known for its onsen. But a relatively lesser-known luxury is their mud baths.
At Ghoshogake Hot Spring Hotel, you can bathe in the natural mud you just saw on the Goshogake Nature Observation Trail! And if you haven’t had enough mud, get a few mud soaps from their souvenir shops.
Besides the mud bath, there are seven other onsen pools/saunas.
Tip: If you are staying overnight at the hotel, check with the hotel when you book to see if any campaigns are going on. You may be able to rent out the smaller onsen pool, Buna-no-Yu (ぶなの湯), during specific hours.
- If you aren’t staying over at this hotel, you can utilize their bathing facilities from
- 10:30 am to 3 pm from Wednesday to Monday
- The last admission is at 2 pm
- 10:30 am to 3 pm from Wednesday to Monday
- The cost is
- 800 yen for adults
- 400 yen for elementary school students
- A face towel can be purchased for 300 yen.
- A towel set can be rented for 500 yen.
- Coin-operated locker costs 100 yen per use.
You can also enjoy lunch full of Akita’s local specials from 11 am to 2 pm at the hotel’s restaurant!
Tip: If you have special dietary requirements like us and are staying overnight at the hotel, let them know what you can’t eat at least 3 days in advance, and they will do their best to accommodate you.
Hachimantai’s Snow Monsters
The Abies sachalinensis forest from Gentamori (源太森) to the summit of Mt. Hachimantai turns into a field of snow monsters from early January. This special scenery forms when the trees are covered with hoarfrost and snow, making them look like monsters on the snowfield!
Unlike the snow monsters at Mt. Moriyoshi or around Hakkōda Ropeway, which can be easily accessed, it is easiest and safest to join a tour to see Hachimantai’s snow monsters.
You can book tours from Hotel Appi Grand (ホテル安比グランド). They have different courses to suit the guests’ experience level. If you have kids, they can only participate if they are 10 years of age or older. You can check whether the tour is running on Hotel Appi Grand’s website.
As booking is essential, make sure to secure your spot before you visit Hachimantai!
Hachimantai Jukai Line (八幡平樹海ライン): Forest Drive & Autumn Foliage
If you like hot springs, take the Hachimantai Jukai Line to the summit of Mt. Hachimantai. As the name of the highway suggests, this highway passes through Hachimantai’s virgin forest. Along the road, you are accompanied by the magnificent view of Mt. Iwate. The scenery along this drive is particularly stunning in spring and autumn.
For more information, refer to our Hachimantai Jukai Line article!
Best Time to Visit Hachimantai: Seasonal Highlights & Timing
Because Hachimantai’s attractions change drastically with the weather, timing your trip depends on what you want to see. The region experiences four distinct seasons, each offering a completely different landscape:
| Season | Months | Top Highlights | Special Notes |
| Spring | Late April – Early June | Snow Corridor, Dragon Eye, fresh greenery | Cold temperatures; waterproof boots required for trails |
| Summer | July – August | Alpine wildflowers, cool mountain hiking, lush forests | Refreshing escape from Japan’s urban heat; fully open trails |
| Autumn | Late Sept – Late Oct | Fiery foliage, scenic drives, Matsukawa Gorge colors | Peak travel season; expect busy roads and early hotel bookings |
| Winter | Dec – March | Snow Monsters, powder skiing at Appi Kogen, quiet onsen | Aspite & Jukai Lines closed; mountain road access restricted |
Spring (Late April to Early June): Snow Walls & the Dragon Eye
- Snow Corridor (Late April – Mid-May): As the Hachimantai Aspite Line reopens after winter closures, visitors can drive between massive 8-meter-tall walls of snow carved along the highway.
- Dragon Eye (Late May – Early June): The signature turquoise ring at Kagami-numa appears for only 2 to 3 weeks as the mountain lake melts.
- Travel Tip: Spring temperatures remain chilly (often around 5°C to 12°C / 41°F to 53°F). Bring a windbreaker and sturdy, waterproof footwear, as trails around the summit are still covered in slush and ice.
Summer (July to August): Alpine Wildflowers & Mild Hiking
- Wildflower Blooms: High-altitude wetlands like Kuroyachi and Gozaisho come alive with blooming alpine flora and lush green mosses.
- Cool Escapes: Sitting at over 1,500 meters, Hachimantai offers a crisp, cool respite from the sweltering summer heat of Tokyo or Kyoto.
- Travel Tip: Summer is ideal for completing longer treks like the Nanataki Waterfall trail or full summit loops without snow gear. Pack sun protection and insect repellent for forest walks.
Autumn (Late September to Late October): Peak Fall Foliage
- Vivid Mountain Canopy: Hachimantai is celebrated as one of Tohoku’s top autumn leaf destinations. Vibrant reds, fiery oranges, and golden yellows sweep down the slopes from the summit toward Matsukawa Gorge.
- Peak Timing: Foliage peaks at higher elevations (summit & Aspite Line) in early October, while lower valleys (Matsukawa Onsen & Mori no Ohashi Bridge) peak around mid-to-late October.
- Travel Tip: Traffic along the Aspite Line can grow heavy on October weekends. Start your drive before 9 am to secure parking at key lookouts.
Winter (December to March): Snow Monsters & Hot Springs
- Frost-Covered Trees: The subalpine fir trees near the summit become encrusted with heavy ice and snow, transforming into surreal “Snow Monsters” (Juhyo).
- Scenic Onsen: Heavy snowfalls turn rustic hot spring resorts like Goshogake Onsen and Matsukawa Onsen into winter wonderlands.
- Travel Tip: The Aspite Line and Jukai Line roads are closed to vehicles from early November to mid-April. Winter access to snow monsters requires joining guided snowshoe tours (often operating out of Hotel Appi Grand) or utilizing specialized snow vehicles.
Festivals at Hachimantai
- Hachimantai Furotosa Fireworks Festival (八幡平ふるさと花火まつり)
- Held on the Saturday from 7:30 – 8:30 pm in mid-August (parades and performances take place during the day)
- Held at Hachimantai City Matsuo Sports Park (八幡平市松尾総合運動公園)
- The park is approximately a 40-minute walk or a 10-minute drive from JR Kitamori Station (北森駅)
- Hirakasa Naked Festival (平笠裸参り)
- It is the only Naked Festival in Japan that allows females to participate (it was a male-only event until WWII. As most of the men were sent to war, the festival was opened up to the females to pray for the safety of the soldiers)
- Held on the 8th of January from 8:30 am to 1:30 pm
- Held at Miyata Shrine (宮田神社)
- The shrine is around a 45-minute walk or a 10-minute drive from JR Ōbuke Station (大更駅).
- Hachimantai Bandit Festival (八幡平山賊まつり)
- An event to eat and shop for local ingredients while watching performances on stage
- Held on the long weekend in the second week of October
- Held at Sakura Park Event Plaza (さくら公園イベント広場)
- Please refer to the access information for Matsugawa Gorge. The park isn’t too far away from the gorge.
What to Wear and Bring to Hachimantai National Park
- The long-sleeved, quick-drying shirt is desirable. In spring and autumn, remember to bring a warm jacket that is wind and water-proof
- Trekking/hiking shoes
- Water bottle with a one-liter capacity
- Gloves (water-proof is better)
- Hat to protect you from direct sunlight and to keep your head warm and safe from obstacles such as tree branches.
- Spats to avoid rain, snow, and sand from coming into your shoes
- Hiking poles
- Towels and plastic bags can be handy
- First-aid kit
Essential Vegetarian & Vegan Guide for the Hachimantai
Exploring the mountainous region of Towada-Hachimantai National Park offers incredible scenery, but plant-based dining options directly in Hachimantai are very limited. Most rest stops and mountain huts in rural Iwate rely heavily on dashi (bonito/fish stock) in soups, noodles, and sauces.
To keep your trip stress-free, use this guide to plan your meals before heading up the mountain.
Dining at the Summit (Hachimantai Mountaintop Rest House)
Located at the highest point of the drive (1,560m altitude), the Hachimantai Mountaintop Rest House (八幡平山頂レストハウス) is the primary stop for food, drinks, and rest.
- Dietary Reality Check: The restaurant menu primarily features regional specialties like Soba, Udon, and Ramen. Almost all noodle broths and dipping sauces here contain fish extract (dashi).
- Accidentally Vegetarian / Vegan Options:
- Miso-Dengaku (味噌田楽): Grilled konjac or tofu skewers coated in sweet miso paste (check that no fish powder is sprinkled on top).
- Baked Sweet Potatoes & Fresh Produce: Seasonal stalls outside often sell baked sweet potatoes (Yaki-imo) or local apples/berries.
- Language Tip for Ordering:“Dashi ni sakana ya niku wa tsukawatte imasu ka?”(Does the broth contain fish or meat extract?)
Where to Stock Up Before the Drive (Morioka & Base Towns)
Because options on the mountain are sparse, the best strategy is to grab a packed lunch (bento) or snacks before ascending.
1. Starting from Morioka City (Recommended)
Morioka has the best vegetarian-friendly infrastructure in the prefecture:
- Dine or Pick Up a Lunch Box: Before heading out of the city, stop by one of the plant-based eateries featured in our guide on Where to Find Vegan-Friendly Restaurants in Morioka to grab a meal or order a portable lunch box.
- Convenience Store Picks:
- Salted Onigiri (Shio-musubi): pure rice without filling.
- Kombu (Kelp) or Umeboshi (Pickled Plum) Onigiri: check labels for hidden fish stock in the seasoning.
- Edamame, Roasted Chestnuts, and Tofu Bars.
2. Base of the Mountain (Matsuo-Hachimantai Area)
- Michi-no-Eki Matsuo-Hachimantai (Roadside Station): Before starting the steep drive up the Aspite Line, stop at this roadside station. You can find fresh local fruit (apples, grapes, peaches depending on season), steamed corn, and local vegetable snacks.
Quick Packing Checklist for Plant-Based Drivers
Before setting off on the 27 km drive, pack these items in your rental car:
- Portable Snacks: Energy bars, dried fruit, mixed nuts, and soy milk boxes from Morioka.
- Travel-Sized Soy Sauce / Vegan Tsuyu: Essential if you want to enjoy plain tofu or noodles at mountain rest stops safely.
- Emergency Bento / Onigiri: Pick up 2–3 vegan-friendly rice balls before leaving the city in case mountain food stalls are closed or sold out.
Frequently Asked Questions About Visiting Hachimantai
How do I get to Hachimantai without a car?
Seasonal public buses operate from Morioka Station (Iwate Prefecture) directly to the Hachimantai Mountaintop Rest House during the non-winter months (typically late April through early November). The journey takes approximately 1 hour and 40 minutes. Additionally, local buses run from Tazawako Station on the Akita side during peak periods.
What is the exact best time to see the Dragon Eye?
The Hachimantai Dragon Eye (Kagami-numa) usually forms between late May and early June. The exact phenomenon lasts only 2 to 3 weeks and depends heavily on spring snowmelt speeds and temperature fluctuations each year.
Is the hike to the Hachimantai Dragon Eye difficult?
No, the walk from the Hachimantai Mountaintop Rest House car park to Kagami-numa is an easy 15-minute walk along a marked trail. However, because the path is still covered in packed snow and slush during May and June, waterproof hiking shoes or boots with good grip are strongly recommended.
When are the Hachimantai Aspite Line and Jukai Line closed?
Both the Aspite Line and Jukai Line scenic highways close to all vehicular traffic for the winter season from early November to mid-April. When the roads reopen in mid-April, drivers can experience the iconic Hachimantai Snow Corridor until the snow walls melt in mid-May.
Are there vegetarian or vegan food options at Mt. Hachimantai?
Vegetarian options directly on the mountain are limited. Most broths, sauces, and instant soups at the Hachimantai Mountaintop Rest House contain dashi (fish extract) or meat derivatives. It is best to pack your own meals, plant-based snacks, or onigiri (rice balls) from convenience stores in Morioka or at the base of the mountain.
How much does it cost to visit Hachimantai?
Access to Towada-Hachimantai National Park, the Aspite Line driveway, and hiking trails is completely free. The only major costs are parking at the Mountaintop Rest House (500 JPY for standard passenger cars), public transit fares, and admission fees if you choose to visit day-use hot springs like Goshogake Onsen (800 JPY) or Toshichi Onsen (800 JPY).
Combine Your Visit to Hachimantai with Appi Kogen Nearby
If you want to extend your Iwate road trip into the highlands, combine your drive with a visit to neighboring Appi Kogen.
Appi Kogen is an idyllic plateau in western Iwate Prefecture. It is great for a relaxing walk from spring to autumn. When the region transforms into a winter wonderland, many come to Appi Kogen to ski or snowboard on its high-quality snow (Appi Ski Resort is said to be comparable to resorts in Hokkaido)!
Read our detailed guide to Appi Kogen to discover seasonal outdoor activities, summer trekking, and winter ski resorts.
Start Your Journey from Morioka, Iwate’s Prefecture
Most travelers begin their Aspite Line journey from Morioka Station. If you are starting your road trip from Morioka, plan to spend some time exploring the city before heading into the mountains.
From historic sites and ironware shops to famous local noodle spots, check out our guide on what to do and see in Iwate’s capital city, Morioka to build the ultimate urban itinerary before your drive.
