Nishi-Onuma Onsen (Hokkaido) Complete Guide | Spring Quality, Benefits, Access, and Recommended Accommodations
What is Nishi-Onuma Onsen?
Nishi-Onuma Onsen is a hot spring located on the north side of Lake Shonuma within Onuma Quasi-National Park in Nanae Town, Kameda District, Hokkaido. You can enjoy hot springs with high skin-beautifying effects while gazing at the majestic form of Komagatake and surrounded by the natural environment of Onuma and Junsainuma lakes.
Onuma Quasi-National Park is one of Hokkaido’s representative scenic destinations, captivating visitors with beautiful natural landscapes that change with the seasons. Nishi-Onuma Onsen, nestled quietly into this natural splendor, is cherished by tourists and locals alike.
History of Nishi-Onuma Onsen
The history of Nishi-Onuma Onsen dates back to the early Showa period. In the 1930s (early Showa era), there was a facility called “Hyakka-en,” which is considered the beginning of Nishi-Onuma Onsen. Later, in 1941 (Showa 16), the hot spring source was re-drilled, and it was established as “Sansuisui Hotel.” This became the foundation of present-day Nishi-Onuma Onsen.
Initially, the hot springs scattered along the shores of Onuma and Shonuma were collectively called “Onuma Onsen,” but currently it has become an independent hot spring area called “Nishi-Onuma Onsen” to distinguish it from Higashi-Onuma Onsen. With more than 80 years of history, it plays an important role as one of the region’s tourism resources.
Spring Quality and Benefits of Nishi-Onuma Onsen
Characteristics of Spring Quality
The spring quality of Nishi-Onuma Onsen is simple hot spring (alkaline simple hot spring). It is characterized by colorless and transparent water with a smooth feel, earning high praise as “beautiful skin hot water.”
Simple hot springs have relatively low mineral content, making the water gentle and kind to the skin, allowing people of all ages from children to the elderly to bathe safely. The alkaline spring quality in particular has a “saponification effect” that removes old dead skin cells, and because the skin becomes smooth and silky after bathing, it is also called “beauty water.”
Hot Spring Benefits
The main benefits of Nishi-Onuma Onsen are as follows:
- Neuralgia and muscle pain: The thermal effect of the hot spring promotes blood circulation, which can be expected to ease pain
- Joint stiffness: Warm water expands the range of motion of joints and alleviates stiffness
- Fatigue recovery: The blood circulation promotion effect accelerates the elimination of fatigue substances
- Cold sensitivity: Warms the body from the core and is effective in improving poor circulation
- Wounds and eczema: Kind to the skin, helps improve skin conditions
- Skin beautifying effects: Alkaline spring water gently removes old dead skin cells and enhances moisturizing effects
Particularly effective for promoting blood circulation, soaking in the hot spring after a walk around Onuma to leisurely ease fatigue provides mental and physical refreshment.
Precautions When Bathing
To safely enjoy the hot spring, please observe the following points:
- Drink plenty of water before and after bathing
- Avoid prolonged soaking; aim for about 15-20 minutes per bath
- Use a rinse water before entering to acclimate your body
- Avoid bathing immediately after meals or after drinking alcohol
- Consult a doctor before bathing if you have chronic conditions
Charm of “Mori no Yu” at Nishi-Onuma Onsen
The representative facility of Nishi-Onuma Onsen is “Mori no Yu,” the private hot spring of Hakodate Onuma Prince Hotel. Its open-air bath, which makes you feel like you’re melting into nature, is popular and attracts many tourists.
Spectacular Views of the Open-Air Bath
The greatest charm of “Mori no Yu” is the spectacular view of Komagatake across the pond from the open-air bath. Bathing while viewing the changing natural beauty of Onuma Quasi-National Park throughout the seasons enriches the hot spring experience.
- Spring: Lush fresh green is easy on the eyes, and you can feel the refreshing air of snowmelt
- Summer: Enveloped in deep green, you can bathe while feeling the cool breeze
- Autumn: The beauty of mountains dyed in autumn colors is spectacular, and the combination with hot springs is excellent
- Winter: Open-air bathing in snowy landscapes is a luxurious experience unique to Hokkaido
High Skin-Beautifying Hot Spring
The hot spring at “Mori no Yu” is a colorless and transparent simple hot spring with a smooth feel, and the skin becomes smooth and silky after bathing. With high moisturizing effects, it is particularly popular among women. The alkaline spring quality gently removes old dead skin cells and promotes skin metabolism, providing high skin-beautifying effects.
Day-Trip Bathing Information
Hakodate Onuma Prince Hotel’s “Mori no Yu” accepts day-trip bathing as well.
- Operating hours: 14:00-18:00 (last admission 17:30)
- Charge: Around 1,000 yen for adults (may vary depending on season)
- Facilities: Indoor bath, open-air bath, sauna, rest area
※Operating hours and charges may change, so it is recommended to confirm with the facility in advance.
Recommended Accommodations at Nishi-Onuma Onsen
Various accommodations are scattered throughout the Nishi-Onuma Onsen area where you can enjoy the natural beauty of Onuma Quasi-National Park.
Hakodate Onuma Prince Hotel
Hakodate Onuma Prince Hotel, which has “Mori no Yu,” is the representative accommodation of Nishi-Onuma Onsen.
Features:
- Spectacular location with views of Komagatake
- Enjoy beautiful skin hot water at private hot spring “Mori no Yu”
- Cuisine using Hokkaido ingredients
- Spacious guest rooms for comfortable stays
- Located within Onuma Quasi-National Park, ideal for nature walks
Access:
- Free shuttle bus from JR Onuma Koen Station (reservation required)
- About 10 minutes by car from Onuma Koen Station
Greenpia Onuma
A comprehensive resort facility popular for family and group use.
Features:
- Hot spring facilities complete
- Rich sports facilities and activities
- Accommodates large groups
- Reasonable pricing
- Activities to enjoy throughout the year
Libmax Resort Hakodate
A facility located in the Onuma area where you can enjoy hot springs and resort atmosphere.
Features:
- Large public bath complete
- Modern guest room facilities
- Buffet-style meals
- Accommodates business use as well
Access to Nishi-Onuma Onsen
Access by Train
From Hakodate Station:
- About 50 minutes on the JR Hakodate Main Line to “Onuma Koen Station”
- From Onuma Koen Station, about 8-10 minutes by taxi or free shuttle bus (for Hakodate Onuma Prince Hotel)
From Sapporo Station:
- About 3 hours 30 minutes on the JR Limited Express Hokuto to “Onuma Koen Station”
- From Onuma Koen Station, use taxi or shuttle bus
Access by Car
From Hakodate City:
- About 40 minutes via National Route 5
- About 5 minutes from “Onuma Koen IC” on the Doo-Chuoh Expressway
From Sapporo:
- About 4 hours via the Doo-Chuoh Expressway
- About 5 minutes from Onuma Koen IC
From New Chitose Airport:
- About 3 hours 30 minutes via the Doo-Chuoh Expressway
Parking Information
Each accommodation facility has dedicated parking. Day-trip bathing usually allows free parking as well, but parking lots may be full during peak times, so it is recommended to confirm in advance.
Tourist Attractions Around Nishi-Onuma Onsen
Onuma Quasi-National Park
Onuma Quasi-National Park, where Nishi-Onuma Onsen is located, is one of Hokkaido’s representative scenic destinations.
Highlights:
- Onuma, Shonuma, and Junsainuma lakes: Beautiful lakes with 126 small islands floating on them
- Komagatake: An active volcano with an elevation of 1,131m and symbol of Onuma
- Walking trails: Well-maintained paths around the lakeshore with courses ranging from 15 to 50 minutes to choose from
- Boating and canoeing: Activities to enjoy scenery from the lake
- Cycling: Tour the park with rental bicycles
Onuma Park Walking Trails
Multiple walking courses are available within Onuma Quasi-National Park to suit your fitness level and time.
- Island-Hopping Trail: About 15 minutes, beginner-friendly course
- Oshima Trail: About 25 minutes, popular course
- Sunset Trail: About 50 minutes, full-scale hiking course
You can enjoy pleasant walks while experiencing the nature of each season up close. A hot spring after hiking is particularly special.
Hakodate City Tourism
About 40 minutes by car from Nishi-Onuma Onsen, Hakodate city has many tourist attractions.
Main tourist sites:
- Hakodate Mountain: Famous for its one-million-dollar night view
- Kanomoriya Red Brick Warehouse: Shopping and dining
- Goryokaku Park: Star-shaped castle ruins, famous for cherry blossoms
- Hakodate Morning Market: Market with fresh seafood
- Motomachi Area: European-style buildings full of exotic charm
Trappist Monastery
About 30 minutes by car from Nishi-Onuma Onsen, Japan’s first male monastery.
Features:
- Solemn monastery architecture
- Monastery-made butter and cookies are popular
- Beautiful gardens to stroll through
- A healing space enveloped in silence
Mount恵山
An active volcano where you can enjoy scenery created by volcanic activity.
Highlights:
- The power of a volcano with steaming vents
- Ezan azalea colonies (late May to early June)
- Stunning views from climbing courses
Gourmet Around Nishi-Onuma Onsen
Onuma Dango
“Onuma Dango,” a specialty of Onuma, can be enjoyed at famous shops around JR Onuma Koen Station.
Features:
- Chewy texture
- Three varieties: sweet bean paste, sesame, and soy sauce
- Historic shops founded over 100 years ago
- Perfect as a souvenir
Hokkaido Seafood Cuisine
You can enjoy fresh seafood unique to the Hakodate area.
- Squid dishes: Live squid, a Hakodate specialty
- Sea urchin and salmon roe: Rich-flavored seafood rice bowls
- Scallops: Large and sweet-tasting scallops
- Crab: Snow crab, king crab, and more
Genghis Khan (Jingisukan)
Jingisukan, Hokkaido’s soul food, is not to be missed.
Features:
- Fresh lamb meat in special sauce
- Plenty of vegetables for a healthy meal
- Popular with locals and tourists alike
Onuma Beef
“Onuma Beef,” a black-haired Japanese cattle raised in the Onuma area, has a tender and premium taste.
Ways to Enjoy Nishi-Onuma Onsen
Day-Trip Hot Spring Plan
Sample itinerary (day trip):
- 10:00 – Arrival at JR Onuma Koen Station
- 10:30 – Walk around Onuma Quasi-National Park (Island-Hopping Trail, etc.)
- 12:00 – Lunch and rest with Onuma dango
- 13:00 – Cycling or boat experience
- 14:30 – Day-trip bathing at Nishi-Onuma Onsen “Mori no Yu”
- 16:30 – Souvenir shopping
- 17:00 – Depart from Onuma Koen Station
Overnight Stay Plan
Sample itinerary (1 night 2 days):
Day 1:
- 12:00 – Arrive at Onuma Park, lunch
- 13:00 – Walk around Onuma Quasi-National Park, activities
- 15:00 – Hotel check-in, hot spring bath
- 18:00 – Dinner using Hokkaido ingredients
- 20:00 – Evening hot spring relaxation
Day 2:
- 07:00 – Morning hot spring, breakfast
- 09:00 – Check-out
- 10:00 – Hakodate city sightseeing (Hakodate Mountain, Kanomoriya Red Brick Warehouse, etc.)
- 15:00 – Depart from Hakodate Station
Seasonal Ways to Enjoy
Spring (April-June):
- Cherry blossom blooming (typically early May)
- Fresh green walks
- Ezan azalea viewing
- Mild temperatures ideal for hiking
Summer (July-September):
- Boat and canoe experiences
- Cycling
- Camping
- Summer flowers in bloom
Autumn (October-November):
- Autumn leaf viewing (typically mid to late October is peak)
- Beautiful autumn colors of Komagatake
- Autumn culinary delights
- Hot springs and autumn foliage combination is superb
Winter (December-March):
- Open-air bathing in snowy landscape
- Wakasagi fishing
- Snowshoe experiences
- Enjoy the quiet winter Onuma
Nishi-Onuma Onsen and Surrounding Hot Springs
Higashi-Onuma Onsen
A hot spring area that pairs with Nishi-Onuma Onsen, located on the east side of Onuma.
Features:
- Scenic views of the Onuma lakeshore
- Multiple accommodations scattered throughout
- Spring quality is mostly simple hot springs like Nishi-Onuma Onsen
Yu no Kawa Onsen
One of Hokkaido’s three major hot spring destinations located in Hakodate city.
Features:
- Convenient location about 5 minutes by car from Hakodate Airport
- Over 350 years of history
- Many hot spring hotels and inns line the area
- Spring quality is sodium/calcium chloride hot spring
Ezan Hot Spring District
A hot spring district spreading at the foot of Mount Ezan in the eastern part of Hakodate city.
Features:
- Rich sulfur hot springs
- Spring quality blessed by active volcano
- Enjoy both sea and mountain scenery
Reservations and Tips for Staying at Nishi-Onuma Onsen
Reservation Timing
- High season (autumn foliage season, Golden Week, summer vacation) recommend reservations 2-3 months in advance
- Weekdays and off-season are relatively easier to book
- Early-bird plans can provide affordable stays
Money-Saving Methods
- Use coupons on accommodation booking websites
- Weekday plans tend to be cheaper than weekends
- Room-only plans reduce accommodation costs and allow you to enjoy local dining
- Some facilities offer consecutive night discounts
Packing Checklist
Essentials:
- Towels (some facilities charge for rental)
- Change of clothes
- Cosmetics and skincare products
- Necessary medications
Convenient to Have:
- Camera (for scenic photography)
- Comfortable walking shoes for hiking
- Warm clothing (winter)
- Insect repellent (summer)
Summary
Nishi-Onuma Onsen is a hot spring destination in Nanae Town’s Onuma Quasi-National Park in Hokkaido, with simple hot springs featuring high skin-beautifying effects. Its charms include a spectacular open-air bath with views of Komagatake, skin-gentle spring quality, and natural beauty changing with the seasons.
Hot spring facilities including “Mori no Yu” at Hakodate Onuma Prince Hotel offer both day-trip and overnight stays. By combining walks around Onuma Quasi-National Park, Hakodate city sightseeing, and Hokkaido gourmet, you can plan a fulfilling trip.
Why not spend time refreshing both mind and body at Nishi-Onuma Onsen, which has over 80 years of history, surrounded by Hokkaido’s great nature? Access is also convenient at about 50 minutes from Hakodate Station, making it ideal as a base for Hokkaido trips.
Hot spring information may change, so it is recommended to check the latest information from each facility’s official website or by phone before visiting.
