Unazuki Onsen Hot Spring Town (Toyama Prefecture) Complete Guide | History, Tourist Attractions, Access, and Hot Spring Accommodation Information
What is Unazuki Onsen Hot Spring Town?
Unazuki Onsen Hot Spring Town is a leading hot spring resort in the Hokuriku region located in Kurobe City, Toyama Prefecture. Positioned at the gateway to Kurobe Gorge, it is known as a scenic hot spring town with hot spring inns and hotels lined along the Kurobe River. Located at an altitude of approximately 200 meters, it attracts many tourists throughout the year as a tourist destination where visitors can enjoy seasonal natural beauty.
The greatest characteristic of Unazuki Onsen is its transparent hot spring water conveyed from Kurogane Onsen, located approximately 7 kilometers upstream on the Kurobe River. This water conveyance system is rare in Japan, boasting high-quality hot spring water and abundant volume. The Kurobe Gorge Railway Trolley Train departs from the hot spring town, playing an important role as a base for gorge tourism.
History and Opening Legend of Unazuki Onsen
Circumstances of the Opening
The history of Unazuki Onsen is relatively recent, opening in 1923 (Taisho 12). Yutaka Yamada, a pioneer in Kurobe River hydroelectric power development, planned and realized the conveying of hot spring water from Kurogane Onsen, located in the depths of Kurobe Gorge, to Unazuki.
Using cutting-edge technology for the time, construction work was carried out to convey hot spring water over the steep gorge. With the completion of this water conveyance system, a hot spring town was born in the conveniently located area of present-day Unazuki, developing into one of the leading hot spring resorts in the Hokuriku region.
History of Development
From its opening, Unazuki Onsen attracted attention and became a hot spring destination visited by many literary figures in the early Showa period. Famous literary figures such as Akiko Yosano and Kyoshi Takahama visited this area and featured it in their works.
In 1953 (Showa 28), the Kurobe Gorge Railway was fully completed, establishing its position as a tourist destination. Subsequently, coinciding with the construction boom of the Kurobe Dam by Kansai Electric Power, Unazuki Onsen developed significantly as a base for gorge tourism.
Hot Spring Quality and Therapeutic Benefits of Unazuki Onsen
Characteristics of the Hot Spring Quality
Unazuki Onsen’s hot spring quality is weakly alkaline simple hot water. It is colorless and transparent with little odor, and features a soft texture on the skin. The source water temperature is approximately 90 degrees, boasting abundant hot spring volume.
This hot spring is known as “beautiful skin water,” with a reputation that skin becomes smooth after bathing. The weakly alkaline water gently removes old dead skin cells, producing a smoothing effect on the skin.
Therapeutic Benefits
The main therapeutic benefits of Unazuki Onsen are as follows:
- Relief of neuralgia and muscle pain
- Improvement of joint pain
- Fatigue recovery
- Health promotion
- Improvement of poor circulation
- Stress relief
- Skin beautification effects
Simple hot spring water has little stimulation, making it safe for the elderly and children to bathe in. Not a few tourists engage in hot spring therapy during extended stays.
Recommended Tourist Attractions in Unazuki Onsen Hot Spring Town
Kurobe Gorge Railway Trolley Train
A must-experience when visiting Unazuki Onsen Hot Spring Town is the Kurobe Gorge Railway Trolley Train. The journey from Unazuki Station to Keyaki Flat Station, approximately 20 kilometers, with a one-way travel time of approximately 1 hour 20 minutes, is spectacular.
The trolley train was originally constructed as an industrial railway for Kurobe River hydroelectric power development, but is now operated as a sightseeing railway. From the train windows, one can enjoy the spectacular scenery of one of Japan’s finest V-shaped gorges, with the contrast between red iron bridges such as Shinyamabiko Bridge and Ushihibiki Bridge and the green gorge being breathtakingly beautiful.
Operations run from late April to late November, and it becomes especially crowded during the autumn foliage season from mid-October to early November. Advance reservations are recommended.
Hot Spring Town Strolling Spots
Yamabiko Walking Trail
A walking trail of approximately 3 kilometers extending from Unazuki Onsen Hot Spring Town to Shinymabiko Bridge. While walking along the Kurobe River, visitors can enjoy the natural beauty of the gorge. The round-trip course takes approximately 2 hours and provides moderate exercise. The spring fresh greenery and autumn foliage seasons are particularly beautiful and popular as photo spots.
Yume Dokoro Unazuki
A day-use bathing facility at the center of the hot spring town. Guests can casually enjoy the source spring of Unazuki Onsen, and it is popular with both tourists and locals. It features an indoor bath and an outdoor bath, with the outdoor bath offering particularly pleasant views of the Kurobe River’s clear stream.
Foot Bath “Omokage”
There is a free-to-use foot bath in Unazuki Onsen Hot Spring Town. A relaxation spot where visitors can easily stop by during a stroll, soaking one’s feet in the hot spring while listening to the babbling of the Kurobe River is exceptional.
Kurobe River Electric Power Memorial Museum
A memorial museum where visitors can learn about the history of Kurobe River hydroelectric power development. Displays include the hardships of dam construction, technology of the time, and the connection between Unazuki Onsen and hydroelectric power development. Free admission, and learning about Kurobe’s history adds deeper meaning to exploring the hot spring town.
Selene Art Museum
A small art museum in Unazuki Onsen Hot Spring Town displaying works by Japanese painters including Ikuo Hirayama. As a cultural facility within the hot spring town, it is also recommended for rainy day tourism.
Recommended Hot Spring Inns and Hotels in Unazuki Onsen Hot Spring Town
Luxury Inns
Enraku
A representative long-established luxury inn of Unazuki Onsen. Guest rooms facing the Kurobe River offer panoramic views of the gorge. The cuisine features kaiseki dishes using abundant local Toyama ingredients, with the seafood from Toyama Bay being exceptional. The hot spring is a direct source flow, and the view from the outdoor bath is reputed to be wonderful.
Unazuki Suginoi Hotel
A large hotel positioned on a high ground overlooking Kurobe Gorge. The scenic view from the panoramic outdoor bath is impressive, with the sunset scenery being particularly moving. The in-house facilities are comprehensive, making it suitable for families and group travel.
Mid-Range Inns and Hotels
Hotel Kurobe
Positioned at the center of the hot spring town in a convenient location for sightseeing. Despite reasonable pricing, it has a good reputation for hot spring quality and cuisine, making it popular as accommodation with excellent value for money.
Grand Vilio Hotel Unazuki Onsen
A resort hotel situated along the Kurobe River, combining modern facilities with the benefits of a traditional hot spring inn. The large bath and outdoor bath are spacious, allowing guests to enjoy the hot spring leisurely.
Day-Use Bathing Facilities
Many hot spring inns accept day-use bathing. Times and fees vary by facility, so advance confirmation is recommended. The aforementioned “Yume Dokoro Unazuki” is the most accessible option as a dedicated day-use facility.
Gourmet Information of Unazuki Onsen Hot Spring Town
Local Specialty Dishes
White Shrimp Cuisine
Dishes using white shrimp, called the jewel of Toyama Bay, are a specialty of Unazuki Onsen. White shrimp sashimi, tempura, white shrimp rice bowls, and various other preparations can be enjoyed. The transparent and beautiful appearance and refined sweetness are characteristic.
Hotaru-Ika (Firefly Squid) Cuisine
A limited-time spring specialty, Toyama Bay’s firefly squid is also exquisite. Visitors can enjoy the fresh firefly squid in vinegar miso dressing, aged in brine, tempura, and other preparations available nowhere else.
Kurobe Famous Water Pork
Pork raised with Kurobe’s famous water is tender and odorless. Many inns serve it as shabu-shabu or grilled meat, representing Toyama’s mountain provisions.
Recommended Dining Establishments
Dining establishments and cafes are scattered throughout the hot spring town. Many souvenir shops sell hot spring buns and local sake, allowing visitors to enjoy eating while strolling.
Restaurants serving set meals, soba noodles, and udon made with local ingredients also exist, making it easy to stop by during sightseeing. Soba made with Kurobe’s famous water is particularly popular for its refreshing taste.
Access Methods to Unazuki Onsen Hot Spring Town
Access by Train
From Tokyo Area
Take the Hokuriku Shinkansen to Toyama Station or Kurobe Unazuki Onsen Station, then transfer to conventional trains.
- Tokyo Station → (Hokuriku Shinkansen, approximately 2 hours 10 minutes) → Kurobe Unazuki Onsen Station → (Shinkansen connection bus, approximately 20 minutes) → Unazuki Onsen
- Tokyo Station → (Hokuriku Shinkansen, approximately 2 hours) → Toyama Station → (Toyama Regional Railway Main Line, approximately 1 hour) → Unazuki Onsen Station
From Osaka and Nagoya Areas
Taking the limited express Thunder Bird to Kanazawa Station and transferring to the Hokuriku Shinkansen is convenient.
- Osaka Station → (Limited Express Thunder Bird, approximately 2 hours 40 minutes) → Kanazawa Station → (Hokuriku Shinkansen, approximately 20 minutes) → Kurobe Unazuki Onsen Station → (Bus, approximately 20 minutes) → Unazuki Onsen
Access by Car
Using Hokuriku Expressway
- Approximately 20 minutes from Kurobe IC via National Route 8, Prefectural Route 14
Using Joshinetsu Expressway and Nagano Expressway
- Approximately 2 hours from Nagano IC via National Route 148, National Route 8
In addition to each inn’s parking lot, public parking facilities are available in the hot spring town. However, during the trolley train operating season, particularly the autumn foliage season, traffic is extremely congested, so early arrival is recommended.
Shuttle Services
Many hot spring inns provide shuttle services from Kurobe Unazuki Onsen Station or Toyama Station. Prior reservations are often necessary, so please confirm with your accommodation.
Seasonal Charm of Unazuki Onsen Hot Spring Town
Spring (April to June)
From late April, the Kurobe Gorge Railway operations begin and vibrancy returns to the hot spring town. Fresh greenery is beautiful, and the Kurobe River from snowmelt has abundant water volume and impressive power. In May, azaleas bloom, coloring the hot spring town.
This season has relatively few tourists, making it an off-season opportunity to enjoy the hot spring leisurely.
Summer (July to August)
Unazuki Onsen is also popular as a summer refuge. Due to its high altitude, the climate is cooler and more comfortable than the plains. Riding an open-type car on the trolley train allows one to feel the breeze sweeping through the gorge, creating an exhilarating sensation.
The “Unazuki Onsen Gorge Festival” is held from late July to early August, featuring fireworks displays.
Autumn (September to November)
The busiest season at Unazuki Onsen is the autumn foliage season. From mid-October to early November, Kurobe Gorge is enveloped in blazing autumn colors. The contrast between mountains dyed red and yellow, the clear Kurobe River, and red iron bridges is spectacular.
The trolley train is extremely congested during this period, so early reservations are essential. Hot spring inns often reach full capacity, so reservations several months in advance are recommended.
Winter (December to March)
When the trolley train operations end in late November, Unazuki Onsen transforms into a quiet winter hot spring destination. Taking a hot spring bath amid snowy landscapes is exceptional, and the snow-covered gorge viewed from the outdoor bath is fantastical.
Winter is a season when accommodation rates are relatively reasonable, ideal for leisurely hot spring therapy. However, care is necessary regarding traffic during snowfall.
Tourist Attractions Surrounding Unazuki Onsen Hot Spring Town
Kurobe Dam
Approximately 1.5 hours by car from Unazuki Onsen, Japan’s representative massive dam. The power of the tourist water discharge (late June to mid-October) is spectacular, attracting over 1 million visitors annually. A two-day sightseeing plan combining Unazuki Onsen with the dam is popular.
Kurobe Gorge
Various attractions exist around stations visited by trolley train in Kurobe Gorge. The hot spring in the Kanesui area around Kanesui Station and the Okukanetsu Bridge walkable from Keyaki Flat Station, the final stop, are must-sees.
Uozu Aquarium and Mirage
Approximately 30 minutes by car from Unazuki Onsen, Uozu City is home to the Uozu Aquarium, Japan’s oldest aquarium. Additionally, Uozu is known as a mirage location, where the natural phenomenon of mirage can occasionally be observed in early spring.
Sample Plans for Spending Time in Unazuki Onsen Hot Spring Town
One-Night, Two-Day Plan
Day 1
- 12:00 Arrival at Unazuki Onsen, check-in
- 13:00 Stroll through the hot spring town, visit foot baths
- 15:00 Enjoy the inn’s hot spring leisurely
- 18:00 Dinner (kaiseki cuisine with local ingredients)
- 20:00 Evening stroll through the hot spring town
- 21:00 Bath before bed
Day 2
- 6:00 Morning bath
- 8:00 Breakfast
- 9:00 Check-out
- 9:30 Gorge sightseeing via Kurobe Gorge Railway Trolley Train (round trip approximately 3 hours)
- 13:00 Lunch
- 14:00 Souvenir shopping
- 15:00 Departure
Two-Night, Three-Day Plan
A plan incorporating Kurobe Dam sightseeing on day 2 in addition to the one-night, two-day plan. Using Unazuki Onsen as a base allows enjoyment of both Kurobe Gorge and Kurobe Dam.
Events and Festivals of Unazuki Onsen Hot Spring Town
Unazuki Onsen Gorge Festival
A summer festival held from late July to early August. Fireworks are set off daily during the period, enveloping the hot spring town in a festive atmosphere. Traditional local performances and food stalls appear, allowing enjoyment of a summer evening.
Unazuki Onsen Snow Fireworks Festival
A fireworks display held in February. Fireworks launched against a snowy landscape are fantastical, with a unique winter beauty.
Kurobe Gorge Trolley Train Opening Ceremony
An opening ceremony held annually on the trolley train’s operation start date in late April, celebrating the arrival of spring.
Precautions and Etiquette in Unazuki Onsen Hot Spring Town
Hot Spring Etiquette
- Always rinse with hot spring water before bathing
- Do not immerse towels in the bath
- Tie long hair back
- Do not speak loudly
- Avoid bathing while intoxicated
Precautions When Using the Trolley Train
- Advance reservations are essential during the autumn foliage season
- Bring warm clothing for open-type cars as it is cold
- Many tunnels exist, so daytime riding is recommended
- Confirm the timetable if planning intermediate stops
Winter Precautions
- Be careful as road surfaces freeze during snowfall
- Equip studless tires or chains
- The trolley train will be suspended, so confirm in advance
Souvenirs of Unazuki Onsen Hot Spring Town
Recommended Souvenirs
Kurobe Famous Water
Kurobe’s famous water bottled as a product. The soft water is easy to drink and suitable for brewing tea or coffee.
Hot Spring Buns
Unazuki Onsen’s classic souvenir. Each shop differs in taste and method, and comparing shops is enjoyable.
Local Sake from Kurobe Gorge
Toyama is known as a sake-producing region, and Japanese sake brewed with Kurobe’s famous water is exceptional. Souvenir shops in Unazuki Onsen Hot Spring Town have abundant sake selections.
White Shrimp Cracker
Crackers using Toyama’s famous white shrimp are very popular as souvenirs. Light and with good shelf life, they are suitable as gifts.
Kurobe Gorge-Related Goods
Miniature trolley trains, photograph collections, postcards, and other goods commemorating Kurobe Gorge are abundant.
Summary: The Charm of Unazuki Onsen Hot Spring Town
Unazuki Onsen Hot Spring Town is a leading hot spring destination in the Hokuriku region surrounded by abundant nature. As the gateway to Kurobe Gorge, it allows combining trolley train tourism with hot spring bathing.
Transparent, skin-friendly hot spring water, seasonal gorge beauty, local Toyama ingredients featured in cuisine, and warm hospitality. All these elements are the charm of Unazuki Onsen.
Spring fresh greenery, summer coolness, autumn foliage, and winter snowy landscape—Unazuki Onsen Hot Spring Town reveals a different face depending on the season. Time spent away from daily life relaxing here will refresh both body and mind.
With excellent access from Tokyo and Osaka, Unazuki Onsen Hot Spring Town is ideal for weekend trips. Why not consider it for your next trip? The grand nature of Kurobe Gorge and high-quality hot springs await you.
