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
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.”
You can fully relax in a private natural Kuroyu onsen at each building.
At the attached restaurant, please enjoy the delicious food with Boso・Isumi’s seasonal ingredients that you can have only at “Itsukiri.”
Only Dog Suite of private villas has a dedicated dog run.
Additionally, we prepare items for dogs, such as crates, dishes, and pee pads.
You can enjoy an aromatic treatment at “MORI SPA.” (*Reservation in advance is required.)
Please have a supreme moment at our onsen inn.
The check-in location
2891, Shimobuse, Isumi, Chiba, 298-0017, JapanApproximately 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
Approximately 12 mins by car from JR Ohara station
other facilities
Contact