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Tengu Onsen Asama Sanso

Nagano Prefecture／Komoro City
¥20,000～
No meals ; 2 peopleTax included¥17,000〜
(USD 106.69)

A secluded, tranquil Onsen Accommodation where you can unwind in Japan’s reddest waters and immerse yourself in pristine nature. At the foot of Mt. Asama, enjoy a luxurious moment of pure relaxation.

Escape the hustle and bustle of the city and rejuvenate your mind and body. Enjoy a secluded hot spring with natural flowing water and immerse yourself in breathtaking nature. We offer exclusive experiences such as private villa stays, local cuisine, mushroom foraging, horseback riding, and more—only available here.

Reviews

(4)
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Facilities and Services

See All
  • Hot spring
  • Pet-friendly
Free-flowing hot spring / Large public bath / Shuttle Service (Paid)
IN14:30～21:00
OUT10:00
Number of rooms10 rooms
PetPermitted
Your childPermitted

Photo

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Lodge

【No Meals Included】Exclusive rental of an entire house with private space! Includes natural Onsen bathing and amenities.

IN 14:30～21:00
OUT 10:00
¥20,000～
No meals ; 2 peopleTax included¥17,000〜
(USD 106.69)

[No-Preparation BBQ Plan] Enjoy BBQ without any hassle & stay relaxed in the main building's Japanese-style room (BBQ dinner and breakfast in the accommodation included)

IN 14:00～18:00
OUT 10:00
¥32,000～
Dinner and Breakfast included ; 2 peopleTax included¥27,200〜
(USD 170.70)
Cottage/Japanese-style Room 8 Tatami Mats

【No Meals Included】Exclusive rental of an entire house with private space! Includes natural Onsen bathing and amenities.

IN 14:30～21:00
OUT 10:00
¥22,800～
No meals ; 2 peopleTax included¥19,380〜
(USD 121.62)

[No-Preparation BBQ Plan] Enjoy BBQ without any hassle & stay relaxed in the main building's Japanese-style room (BBQ dinner and breakfast in the accommodation included)

IN 14:00～18:00
OUT 10:00
¥35,000～
Dinner and Breakfast included ; 2 peopleTax included¥29,750〜
(USD 186.71)
Newly Built Cottage with Loft

【No Meals Included】Exclusive rental of an entire house with private space! Includes natural Onsen bathing and amenities.

IN 14:30～21:00
OUT 10:00
¥28,000～
No meals ; 2 peopleTax included¥23,800〜
(USD 149.36)

[No-Preparation BBQ Plan] Enjoy BBQ without any hassle & stay relaxed in the main building's Japanese-style room (BBQ dinner and breakfast in the accommodation included)

IN 14:00～18:00
OUT 10:00
¥40,200～
Dinner and Breakfast included ; 2 peopleTax included¥34,170〜
(USD 214.45)

Best-Selling Stays

Accommodation For Child Sharing Existing Bedding

Convenient Accommodation For Famous Mountain Sightseeing

Accommodation With Full Skincare Amenities

Introduction of the Accommodation

Bath
Bath
Bath
Bath
Bath
Amazing Akayu! A natural reddish-brown Onsen rich in iron.

"Tengu Onsen," springing from deep beneath Mount Asama, is a rare reddish-brown iron-rich hot spring found in only a few places across the whole country. The water changes color upon exposure to air, offering a visually striking experience. It gently warms your body to the core, resists cooling down quickly, and provides thorough relaxation for tired bodies after hiking or other activities. With its soft texture on the skin, it offers a soothing sensation that melts away stress. Enjoy an authentic Onsen experience that truly embodies the "blessings of the mountains."

Exterior
Exterior
Surroundings
Exterior
Exterior
A tranquil accommodation with a view of Mount Asama - A healing retreat to experience the seasons.

Welcome to the trailhead of Mount Asama. Right next to Asama Sanso, the majestic Mount Asama rises before you. At Asama Sanso, nestled at the foot of the mountain, you can enjoy breathtaking views that change with each season—fresh greenery in spring, cool breezes in summer, vibrant autumn foliage, and a snow-covered landscape in winter. The mountain ridges visible from your room window resemble a beautiful painting. Experience a serene space where time flows gently. Escape from everyday life and immerse yourself in nature—this is the kind of stay that awaits you here.

Cuisine
Handcrafted dishes made with a focus on local ingredients to savor the blessings of Shinshu.

We offer handmade soba noodles made with natural water from Mount Asama, freshly harvested vegetables from contracted farmers, and a variety of seasonal ingredients such as wild plants and mushrooms sourced locally. Each dish is crafted with care, delivering a simple yet nostalgic flavor that gently touches the heart. Dining at our lodge feels like savoring the essence of the mountains themselves. Experience the richness of this land in harmony with nature through all your senses.

Horseback Riding Experience
Explore the Asama Mountain Foothills! Outdoor Adventures in Harmony with Nature

Enjoy unique activities such as horseback riding, BBQ, soba making, wild vegetable picking, and mushroom hunting. These experiences are highly popular among outdoor enthusiasts and families with children alike. With various accommodation styles including trailer houses, cottages, and campsites, your stay itself becomes an adventure. Spending time surrounded by nature will surely create unforgettable memories beyond the ordinary. Come and enjoy an active mountain getaway that’s perfect for families and groups!

Trailer House

A Relaxing Trip with Your Beloved Family - Stay with Your Pets

"Because pets are an important part of the family, you want to travel together." Tengu Onsen Asama Sanso offers a pet-friendly accommodation style to meet that desire. In certain rooms, such as trailer houses, you can stay with your beloved dog. Take a walk together in the forest or enjoy the fresh air side by side. Create special moments that deepen your bond with your dog in a unique and tranquil setting. Experience a heartwarming journey surrounded by nature and kindness. Enjoy quality time with your family and beloved pet at your own pace.

Facilities and Equipment of Accommodation

  • The room
    The room
  • Restaurant
    Restaurant

Basic Information

TaxesPlease pay the Hot Spring Tax separately on-site.
Card information
JCB
Pets
Permitted
Dogs, an important member of your family, are welcome to stay with you in our trailer house. Fee: Small/medium dogs: JPY 2,200 Large dogs: Please contact us by phone for details. Pet amenities 　Pet pads, lint roller
BreakfastThere is no information about breakfast.
Your child
You can stay.
Room service
Not available
Common amenities
  • × Shampoo · conditioner
  • × Body soap · soap
  • ○ Towel · Bath towel
  • × Body towel · sponge
  • ○ Toothbrush set
  • × Comb · Brush
  • × Shower cap
  • ○ Hair dryer
  • × Shaving
  • × Shaving Gel/Foam
  • × Bath additives
  • ○ Yukata
  • × Nightwear
  • × Bathrobe
  • × Slippers
  • × facial cleanser
  • × Toner
  • × Lotion
  • × Makeup remover
  • × Cotton swab
  • × Cotton
  • × Clothing deodorizing spray
  • × Refrigerator
  • × Minibar
  • × Electric kettle
  • × Tea set (free)
  • ○ Television
  • × Safe
  • × Scale
  • × Trouser press
  • × Free morning edition
  • × Pay-per-view broadcast
  • × Satellite broadcasting
  • × Video on Demand
  • × Radio
  • × CD player
  • × DVD player
  • × Blu-ray player
  • × Speakers for portable audio
  • × In-room PCs and tablets
Facilities and Features
  • ○ Hot spring
  • × Rooms with open-air baths available
  • × Open-air bath
  • ○ Free-flowing hot spring
  • ○ Large public bath
  • × Private bath
  • × Sauna
  • × Ganbanyoku (rock bathing)
  • × Within a 5-minute walk from the station
  • × Within a 5-minute walk to the convenience store.
  • × Indoor pool
  • × Outdoor pool
  • ○ Pet-friendly
  • × Spa facility
  • × Fitness
  • × Free shuttle service
  • ○ Shuttle Service (Paid)
  • × Room service
  • × Room Service Available 24 Hours
  • × Barrier-free
  • × Childcare services
Esthetic Massage
None
Fitness gym
None
Public Bath
The number of Public Bath
2
Business Hours
00:00~24:00
Hot spring
Available
Free-flowing
Available
Milky hot spring water
Available
Additional Information
100% natural hot spring (Heating)
Remarks
Only the Main Building is available 24 hours a day. Please check the operating hours in the promotional description for each Plan.
Spring quality and benefits

Simple Iron Cold Mineral Spring

Rheumatism, neuralgia, muscle pain, etc.

※Regarding the notation of "Gensen Kakenagashi"
In some facilities, heating or adding water for temperature adjustment may be performed. Additionally, please note that in some parts of the facility, the hot spring water may not be free-flowing from the source. For more details, please contact each facility.

SaunaNone
Hot stone spaNone
OthersOther accepted cards: DC Free shogi set rental / Free mahjong set rental / Free go set rental

Reviews

The overall facility score is not displayed because the required number of reviews has not been reached.

*Reviews that have been translated from Japanese.*

*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*

Access Information

Address
Nagano Prefecture4766-2 Komata, Komoro City
TEL：+81-267-22-0959

25 minutes by car from Komoro IC on the Joshinetsu Expressway. 40 minutes by car from Karuizawa.

Parking Information
Fee
Free for guests
Parking time
---
Parking space
No restrictions
Number of parking spaces
30 cars available outdoor
Valet service
Unavailable
No reservation required.

Pickup and drop-off information
Available (Paid)We offer a Shuttle Service between Komoro Station and our Accommodation. Guests using the Shuttle Service will be charged an additional Service Fee (approximately 10% of the accommodation rate).
Please call us by the day before use to arrange and confirm details.

Frequently Asked Questions

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