Experience-based resort, glamping, gourmet dining experience, luxurious sports facilities

"What should I do for my next holiday?" If you're unsure, leave it to us. The experiential resort "Risono no Mori," located on the Boso Plateau in Chiba Prefecture, close to the city center, serves as your vacation concierge. We offer a variety of experiences, from connecting with nature, caring for your mind and body, trying new sports, to discovering new cuisines, ensuring the best holiday for all our guests.

  • For the past few years, we have stayed here almost every year.It reminds us how wonderful it is to spend time with family in nature.The Room and the surrounding greenery are beautifully maintained, and we also enjoy the delicious meals.The fun activities and the relaxing time are both fantastic.Above all, all of the staff are truly wonderful, and it became a joyful summer family memory.Thank you again for this year.

    Yahoo!トラベルユー... 7/29/2026
  • I went with my adult daughter.If it’s your first time, it’s best to research in advance.Most events on your stay date require Reservations, so I registered via LINE before going.First, we checked in at reception early, tried soap making, the long zip slide, and the obstacle course, then checked into our Room.We enjoyed tennis and the Onsen until dinner.The next morning: morning yoga, breakfast, then check-out.After that: tennis, a plum grove picnic lunch, chai tea making, and the MTC Onsen…The 60-minute tennis court slots were available and are recommended for anyone who wants to be active.Since you move around by car and on foot along the way, I ended up with pretty bad muscle soreness—but it was a very fulfilling two days.It’s a bit pricey, so taking our whole family of five might be difficult, but I’d like to go again.

    Yahoo!トラベルユー... 2/22/2026

Facilities and Services

See All
  • Hot spring
  • Spa facility
  • Fitness
Open-air bath / Large public bath / Outdoor pool / Free shuttle service
IN15:00~18:00
OUT11:00
Number of rooms113 rooms
PetNot allowed
Your childPermitted
Renovated Log House / Capacity for 4 People
  • Vacation rental
  • 66㎡
  • Capacity 2~4 people

[Summer Limited - Standard BBQ] Enjoy a villa-like experience in a cypress log house <with pool access>

IN 15:00~18:00
OUT 11:00
¥57,090
Dinner and Breakfast included ; 2 peopleTax included¥51,390
(USD 322.52)

[Summer Special: Domestic Beef Yaki-Shabu Course] Enjoy a villa-like experience in a cypress log house <Includes Pool Access>

IN 15:00~18:00
OUT 11:00
¥57,090
Dinner and Breakfast included ; 2 peopleTax included¥51,390
(USD 322.52)

[Domestic Beef Sukiyaki Course] Enjoy a Hotel Stay with Forest Panorama <Includes Bathing in Natural Onsen "Momiji no Yu">

IN 15:00~17:00
OUT 11:00
¥58,800
Dinner and Breakfast included ; 2 peopleTax included¥52,920
(USD 332.12)

[Suisyutei Casual Course ~Hōraku-yaki~] Enjoy a hotel stay with panoramic forest views <Includes access to natural Onsen "Momiji-no-Yu">

IN 15:00~17:00
OUT 11:00
¥58,800
Dinner and Breakfast included ; 2 peopleTax included¥52,920
(USD 332.12)

【Domestic Beef Sukiyaki Course】 A glamping area where you can enjoy natural experiences and natural Onsen <Includes natural Onsen 'Momiji no Yu'>

IN 15:00~17:00
OUT 11:00
¥58,800
Dinner and Breakfast included ; 2 peopleTax included¥52,920
(USD 332.12)

[Suisyutei Casual Course ~Hōraku-yaki~] Enjoy a glamping area with nature experiences <Includes natural Onsen "Momiji-no-Yu">

IN 15:00~17:00
OUT 11:00
¥58,800
Dinner and Breakfast included ; 2 peopleTax included¥52,920
(USD 332.12)

Best-Selling Stays

Rooms With Open-Air Baths Popular At Stays

Accommodation With All-You-Can-Eat Seafood

Onsen Accommodation With Delicious Buffet

Accommodation Suitable For Families With Elementary School Girls

Introduction of the Accommodation

Ultimate relaxation at the forest spa resort

■Momiji no Yu Onsen A dark brown sodium bicarbonate mineral spring abundantly emerging from a shallow depth of 600m underground. The mildly alkaline water helps remove old keratin and pore impurities, rejuvenating the skin. ■Nagara Karuna no Yu Onsen A semi-natural Onsen with milky white water containing sulfur components. The milky water is dissolved from raw stones sourced from Futamata Onsen in Hokkaido, effective for fatigue recovery.

Facilities and Equipment of Accommodation

  • The room
    The room
  • Restaurant
    Restaurant
  • Facilities & Services
    Facilities & Services

Basic Information

Taxes■When using Koyo-no-Yu, a Hot Spring Tax (150 yen for ages 12 and above) will be charged.
Card information
VISA / MASTER / JCB / AMEX
Pets
Not allowed
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
Outdoor pool
Available period
---
Business Hours
---
Final admission time
---
Fee(Guest)
Paid
Fee(Non-guest)
---
Children's pool
None
Age restriction
Pool shape
Rectangular
Pool size


The outdoor resort pool is open only during the summer season.
Esthetic Massage
Available
Fitness gym
Business Hours
10:00~17:00
Final admission time
16:30
Fee(Guest)
Paid null
Fee(Non-guest)
Paid
Age restriction
Due to circumstances, we may close or limit the use of the facility.
Public Bath
The number of Public Bath
2
Business Hours
15:00~23:00
Hot spring
Available
Free-flowing
None
Milky hot spring water
Available
Additional Information
(Heating)
Remarks
*Additional charges may apply depending on the accommodation area.
Open-air bath
The number of Open-air bath
2
Business Hours
15:00~23:00
Hot spring
Available
Free-flowing
None
Milky hot spring water
Available
Additional Information
(Heating)
Remarks
Located within Koyo no Yu.
SaunaNone
Hot stone spaNone
Others【Other Accepted Credit Cards】 UC, UFJ Card, Saison, AEON, Rakuten Card

Reviews

Overall Score
4.15
(16)
  • Rooms & Amenities
    4.19
  • Facility
    4.13
  • Hospitality & Service
    4.25
  • Meals
    3.94
  • Onsen & Bath
    4.44
  • Satisfaction
    3.94

*Reviews that have been translated from Japanese.*

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

Access Information

Address
Chiba Prefecture486-4 Ueno, Nagara-machi, Chosei-gun Hotel Trinity Study
TEL:+81-475-35-3333

【Public Transportation】
JR Sotobo Line, Honda Station South Exit → 20 minutes by free Shuttle Service

【By Car】
- About 5 minutes from Mobara Nagara Smart IC.
〈Using Tokyo Bay Aqua-Line and Ken-O Expressway〉
- About 5 minutes from Chiba Sotobo Toll Road "Itakura IC".
〈Using Higashi-Kanto Expressway and Keiyo Road〉

Parking Information
Fee
Free for guests
Parking time
---
Parking space
No restrictions
Number of parking spaces
---
Valet service
Unavailable
Parking available for 150 cars (free), 15 microbuses (free), and 10 buses (free).

Pickup and drop-off information
Available (Free)Operating hours are subject to change. Please check in advance.

Frequently Asked Questions

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