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Supplier's own class: 3.5 starsHot springs property

ADVENTURES ISLAND KOYARUZAWA LODGE

850 Koyaru, Yachimata, Chiba, 289-1135

More stays in Yachimata

Our lodging supplier sets this class by its own criteria. It is not an official hotel star rating. It does not guarantee any particular feature or amenity.

Rooms and rates

Overview

About this property

With a stay at ADVENTURES ISLAND KOYARUZAWA LODGE in Yachimata, you'll be within a 15-minute drive of Kawamura Memorial DIC Museum of Art and Izumi Natural Park. This hotel is 12.5 mi (20.1 km) from Tokyo Bay and 11.9 mi (19.2 km) from Chiba University.

Make yourself at home in one of the 60 guestrooms featuring refrigerators and microwaves. Rooms have private balconies or patios. Complimentary wireless internet access is available to keep you connected. Bathrooms feature separate bathtubs and showers, complimentary toiletries, and hair dryers.

Don't miss out on the many recreational opportunities, including an outdoor pickleball court, a sauna, and a seasonal outdoor pool. Additional features at this hotel include complimentary wireless internet access and shopping on site.

Enjoy a meal at the restaurant or snacks in the hotel's coffee shop/cafe. Full breakfasts are available daily from 7:00 AM to 9:30 AM for a fee.

The front desk is staffed during limited hours.

At a glance

ADVENTURES ISLAND KOYARUZAWA LODGE is in Yachimata, and its property type is Hotel. It is one of 5 stays in Yachimata that can be booked on Ondastay (English property list of Thursday, October 1, 2026). 3 of them have the property type Hotel. 1 other stay in Yachimata is within 1 km of it in a straight line.

Booking on Ondastay

  • The property takes payment on site in Japanese Yen (JPY).
  • The seller is ONDA Inc., and the payment is processed by Toss Payments.
  • The total (taxes and service fees included), fees paid on site, who sells the stay and the cancellation terms are set out in the Terms of service.

Room types

7 room types at ADVENTURES ISLAND KOYARUZAWA LODGE
RoomSizeGuestsBeds
Standard Twin Room, Non Smoking52 m²Sleeps 42 Double Beds
Superior Twin Room, Non Smoking52 m²Sleeps 42 Large Twin Beds
Superior Suite, Non Smoking52.9 m²Sleeps 42 Large Twin Beds
Deluxe Suite, Non Smoking76 m²Sleeps 54 Large Twin Beds
Luxury Suite, Non Smoking70 m²Sleeps 54 Large Twin Beds
Fairway Side Superior Suite, Non Smoking65 m²Sleeps 22 Large Twin Beds
Fairway Side Deluxe Suite, Non Smoking85 m²Sleeps 42 Large Twin Beds and 2 Double Beds

Amenities

  • Shopping on site
  • Breakfast available (surcharge)
  • Front desk (limited hours)
  • Sauna
  • Smoke-free property
  • Outdoor seasonal pool
  • Free WiFi
  • Number of restaurants· 1
  • Kayaking on site
  • Playground on site
  • Number of coffee shops/cafes· 1
  • Free pool cabanas
  • Hot springs nearby
  • Housekeeping on request
  • Outdoor entertainment area
  • Off-street parking
  • Wheelchair accessible (may have limitations)
  • Wheelchair-accessible public washroom
  • Wheelchairs available on site
  • Change of towels (on request)
  • Change of bed sheets (on request)
  • Front entrance ramp
  • Pickleball court on site
  • Outdoor pickleball courts· 1

Location

Good to know

Check-in
3:00 PM – 7:00 PMMinimum check-in age 18
  • Extra-person charges may apply and vary depending on property policy
  • Government-issued photo identification and a credit card, debit card, or cash deposit may be required at check-in for incidental charges
  • Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed
  • This property accepts credit cards, debit cards, and cash
  • This property has outdoor spaces, such as balconies, patios, terraces which may not be suitable for children; if you have concerns, we recommend contacting the property prior to your arrival to confirm they can accommodate you in a suitable room
The front desk is open daily from 7:00 AM - 10:00 PM. This property doesn't offer after-hours check-in. The front desk is staffed during limited hours. Information provided by the property may be translated using automated translation tools.
Check-out
11:00 AM
Optional extras
  • Fee for full breakfast: approximately JPY 4000 per person
The above list may not be comprehensive. Fees and deposits may not include tax and are subject to change.
Know before you go
  • The seasonal pool will be open from January to December.
  • The Japanese Ministry of Health, Labour, and Welfare requires all international visitors to submit their passport number and nationality when registering at any lodging facility (inns, hotels, motels, etc. ). Additionally, lodging proprietors are required to photocopy passports for all registering guests and keep the photocopy on file.
  • Please note that some properties do not permit guests with tattoos to use the onsite public bathing facilities.
Accepted at the property
American Express · Diners Club · JCB International · Mastercard · Visa · Cash · Debit cards · UnionPay
Languages spoken
Japanese
Pets
Pets not allowed · Service animals are allowed · Service animals are exempt from fees/restrictions