Rare guest room Kuroyu (black water) onsen in Japan
Onsen spa resort Itsukiri
Opened on July 29th, 2023
Rare guest room Kuroyu (black water) onsen in Japan
Onsen spa resort Itsukiri
Opened on July 29th, 2023
Rare guest room
Kuroyu (black water) onsen in Japan
The onsen spa
resort in Isumi, Chiba
It is a 90-min drive
from the center of Tokyo.
Isumi City in Chiba has a warm climate
throughout the year,
beautiful ocean,
and soothing rural landscapes.
At this place attracting many visitors, the resort facility,
equipped with a guest room Kuroyu onsen in all rooms, opened.
The rare Kuroyu water is drawn from 300 meters underground.
Please enjoy relaxing mentally and physically in the “Sodium
– Hydrogen Carbonate Springs” with its silky texture and luxurious SPA.
We offer a private high-quality space
where you can feel close to
rich
nature.
Please enjoy the black water onsen
called “Bijin-no-Yu (hot spring of beauty)”
and savor Isumi’s seasonal food
in an auberge style.
Surrounded by lush mountains,
have an extraordinary moment
at the luxurious onsen spa resort “Itsukiri.”
8 Attractions
01
Enjoy our onsen as much as you want!
It is a natural Kuroyu hot spring of
Boso with lots of benefits and effects.
Chiba Prefecture is one of the Kanto region’s leading onsen areas, known to those in the know.
You can enjoy the natural Kuroyu onsen in a private bath at each building at “Itsukiri.” Please fully enjoy
the natural onsen with a lot of benefits and effects and relax any time and as many times as you like.
Additionally, there are two types of large public baths. Men’s and women’s baths are separate and spacious,
and they are equipped with indoor baths, open-air baths, saunas, and cold baths.
It is designed to ensure that you can enjoy our facility as a Japanese onsen inn.
02
Premium suite with a whole private building
Two types of natural hot springs & private pool & sauna
“Itsukiri” owns 13 suite villas and 7 glamping tents.
Among a variety of guest rooms, the two exclusive premium villas are the most prestigious option, and one
whole building is all yours! The two-story private villas were renovated from traditional Japanese houses
and are equipped with two types of guest room onsens, a pool, and sauna. They can accommodate up to 13
people and are the most spacious and well-equipped high-end accommodations in the prefecture.
03
Equipped with a Kuroyu onsen in all rooms
7 types of private villas
Equipped with a natural hot spring, each of the suite villas has an over 80-square-meter space. You can
enjoy a wonderful moment, feeing very close to rich nature of Satoyama (the woodland area near a village) at
a high-quality private villa.
We can offer one of the seven types of unique guest rooms equipped with a loft and sauna, and a dog-friendly
dog run and pool.
04
Equipped with a rare guest room Kuroyu onsen
Glamping dome
The glamping tent is recommended for those who would like to experience outdoor activities to enjoy nature
more.
One whole large dome-shaped tent is all yours, and you can choose one from the one with 7 meters or 10
meters in diameter. Both of them are suitable for a group use with a large space and equipped with an
all-weather dining space and bathroom. Women and children can also comfortably enjoy our facility.
05
Available for a large group, too!
Large public bath & sauna
At the main building, we have an indoor Kuroyu bath, open-air bath, sauna and cold bath.
It is designed to fully satisfy even onsen lovers and sauna lovers, and you can enjoy it with your group and
family together.
06
Enjoy a private space with your dog!
How about a guest room onsen with
your dog?
Your dog is an important member of your family.
We offer 5 types of rooms where you can relax and spend a wonderful time with your dog.
All rooms are separate and independent, so there is no need to worry about other dogs.
Additionally, it is equipped with a guest room onsen, so you can enjoy the Kuroyu onsen from our private
source without being separated from your dog.
07
Savor a blissful feast of Boso’s food
An auberge style that captivates
foodies
The highlight of your stay at “Itsukiri” is definitely the delicious seasonal food you can enjoy at our
attached restaurant. We have considered the perfect cooking methods and techniques for Boso・Isumi’s seasonal
ingredients to captivate gourmets and foodies.
A variety of age meats and seasonal ingredients are prepared using methods such as wood and charcoal
grilling, which can bring out the natural flavors of them in free and creative ways.
There are lots of dishes you can enjoy because you visit us! We will offer a blissful moment and let you
indulge in the delicious food.
08
Grill delicious seasonal ingredients!
BBQ style to enjoy nature
For those who would like outdoor activities, we recommend enjoying a BBQ in your room. The BBQ menu from
our restaurant features a lot of Chiba’s local ingredients carefully selected for you. All you have to do is
to grill and warm it up with a minimal effort. Additionally, we offer a “Sudomari plan,” where you can bring
your ingredients and enjoy your original BBQ.
*Sudomari means staying without meals.
The characteristics of “Itsukiri”
Guest Room Onsen
You can fully relax in a private natural Kuroyu onsen at each building.
Auberge Style
At the attached restaurant, please enjoy the delicious food with Boso・Isumi’s seasonal ingredients that you can have only at “Itsukiri.”
Private Dog Run
Only Dog Suite of private villas has a dedicated dog run.
Additionally, we prepare items for dogs, such as crates, dishes, and pee pads.
SPA
You can enjoy an aromatic treatment at “MORI SPA.” (*Reservation in advance is required.)
Please have a supreme moment at our onsen inn.
Access
The check-in location
2891, Shimobuse, Isumi, Chiba, 298-0017, Japan-
By car
Approximately 90 mins from Tokyo area
Tokyo Bay Aqua-Line / Via National Route 409
Approximately 30 mins from Ichihara Tsurumai Interchange (IC) on the Ken-o Expressway -
By train
Approximately 12 mins by car from JR Ohara station
ResortGlamping.com
other facilities
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