A white sanctuary blending with the horizon
Grand Opening March 2026
March 2026: UMInoTERRACE Garden emerges along the Minamiboso coastline.
A world of pure “white” that blurs boundaries, offering unobstructed panoramic views.
Here, only the sky, the sea, and silence exist.
Shed the noise of daily life and experience moments of bliss where your senses are sharpened.
Room
A pristine white canvas of a room, adorned with curated contemporary art and designer furniture.
This sophisticated modern space evokes the exhilaration of staying in a private gallery by the sea.
Experience a refined lifestyle within a space where functional beauty and artistic expression converge.
Recommended number of guests 8persons 2 persons to a maximum of 14 persons
Weekday
From 169,000 yen
Weekends & Holidays
From 199,000yen
Top Season Weekdays
(GW, Summer, Silver Week, Year-end and New Year)
From 249,000 yen
Top Season Weekends and Holidays
(GW, Summer, Silver Week, Year-end and New Year)
From 299,000 yen
Additional charge
・The base occupancy is 8 guests. (Maximum 14 guests)
An additional fee applies per extra guest.
For detailed rates, please select your desired dates on the reservation site to confirm the accommodation fees.
・Elementary school-aged children and above count as one guest each. Preschool-aged children under elementary school age are not included in the count.
※Base rates and additional fees may vary depending on the date.
Number of bedding sets
・King bed ×1 (Hideaway Suite only)
・Double beds ×6 (2 in each of 3 bedrooms)
・Pillows ×14
・Comforter ×7
※No extra bedding is provided. Please accommodate additional guests by sharing beds.
Amenities
john masters organics
We have a full lineup of products.
Based on the concept of “a luxurious beauty line that respects the earth,” john masters uses 100% organic botanicals and natural ingredients to create products that are recognized by professionals and used in hair salons throughout Japan.
Seafood BBQ Set (Serves 2-3 people ¥10,000)
Fishmonger's Selection Premium Plan
We sell freshly caught, Boshu-grown, abalone, turban shell, lobster, etc.
We have carefully selected ingredients that are rarely available from local fishmongers.
【Contents of the set】
・1 Ise lobster
・Abalone 2 pcs
・4 scallops
・5 hard clam
・Five pieces of prawns
・3pcs. turban shell
The number of pieces may change slightly depending on the season and size.
The images are for illustrative purposes only.
The items will be delivered in the refrigerator at the time of check-in.
※BBQ grills, pool, and sauna are available 24 hours a day.
※Check-in: 3:00 PM~ (Early check-in available from 1:00 PM for an additional ¥20,000 charge.)
Check-out: 10:00 AM
※If you must cancel your reservation, please notify us as soon as possible. Please refrain from making tentative reservations.
※【Basic Cancellation Policy】Cancellation fees apply starting 7 days prior to your scheduled stay. Please be aware.
・Cancellation 7 days prior to stay: 50% of total stay cost
・Cancellation the day before/on the day of stay or no-show: 100% of total stay cost
Cancellation policies may change during peak seasons. Please be sure to check the policy displayed at the time of booking.
※Reductions in the number of nights or guests due to guest circumstances will also incur cancellation charges.
・Please note that if checkout is delayed, a charge of ¥10,000 will be applied for every 30 minutes.
★Important Notes
・Due to our location in a nature-rich area, we exercise utmost care, but insect entry may occasionally occur.
・Please note that the heated pool may feel cold depending on the outside temperature.
・Reservations must be made by the representative (organizer).
・Please refrain from making tentative reservations with the intention of canceling.
・Parking is available for up to 4 vehicles. For more vehicles, please inquire.
・The entire indoor area is non-smoking. Smoking is permitted only on the terrace. (Please dispose of cigarette butts properly.)
・Fireworks are strictly prohibited. Please use them on the beach.
・Please wash all used dishes and return them to their original locations.
・The sauna uses an electric heater.
・Pets are not permitted. If discovered, you will be charged the actual cost for special cleaning.
◆For Safe Sauna Use
・Please wear a swimsuit when using the sauna.
・If you feel unwell, please refrain from using the sauna.
・We strictly prohibit using the sauna after consuming alcohol.
・Alcoholic beverages are not permitted inside the sauna room.
・Please remove all jewelry and accessories before entering the sauna to avoid the risk of burns.
◆Regarding Sauna Use
・Before bathing or after an outdoor air bath, please wash your body in the shower before entering the sauna room.
・Pouring water onto the sauna stones (löyly) will cause steam to be released suddenly. Please be careful not to burn yourself.
・Pouring water onto the sauna stones (löyly) must only be done when the stones are heated, as advised by a doctor.
Pouring water when the stones are cold can cause malfunction.
・When pouring water onto the sauna stones (löyly), please use approximately one to two ladlefuls per session. Pouring too much water at once can cause it to drip onto the electric heater without evaporating, leading to malfunction. Please be aware that should excessive water pouring cause damage, you will be responsible for both repair costs and any resulting business interruption expenses.
Access
UMInoTERRACE Garden
5580-170 Takiguchi,
Shirahama-cho,
Minamiboso City,
Chiba Prefecture