[With Spa Access] Up to 24-Hour Stay! Enjoy a Full Spa Retreat

Healing and indulgence – A stay plan for a relaxing 24 hours

A Luxurious Spa Resort Experience to Gently Relax Your Mind and Body.

This plan allows you to stay for up to 24 hours, letting you unwind without worrying about time. During your stay, enjoy [THERMAL SPA S.WAVE], a hot spring and spa facility featuring a hot-water infinity pool where you can feel united with the Pacific Ocean, along with various terraces and other relaxing spaces. Fully enjoy a hotel stay filled with unforgettable experiences and breathtaking views unique to Oiso.
*The stay period is from 3:00 P.M. check-in to 3:00 P.M. check-out the next day, for a maximum of 24 hours.

Period

October 29 (Wed), 2025–March 31 (Tue), 2026

*Stays are available from Monday to Thursday during the above period.
*Exclusion dates: December 29 (Mon), 2025–January 1 (New Year’s Day), 19 (Mon), 20 (Tue), 2026

Plan Highlights

• You can stay for up to 24 hours with check-in at 3:00 P.M. and check-out at 3:00 P.M. the next day!
• Includes a 10% discount coupon for use at the restaurants during your stay.
• Includes a 10% discount coupon for use at the [THERMAL SPA S.WAVE] 4F SPA bar.

Enjoy “THERMAL SPA S.WAVE” to the fullest during your stay!

You can enjoy the hot spring and spa facility “THERMAL SPA S.WAVE,” which includes an infinity pool where you can experience an overwhelming sense of weightlessness as if you were one with the horizon, as well as four types of saunas with different temperature ranges and aromatic showers.

■Enjoy the warm infinity pool even in winter.
During winter, the water temperature is increased so you can relax in a warm infinity pool. Enjoy the winter spa experience along with the sauna and stone spa.

*The THERMAL SPA S.WAVE ticket is included for adults (ages 12 and up) as part of this plan.
*A separate fee will be charged for use before check-in or after check-out.
Fee: ¥1,000 per person / each time (tax included)

■About using THERMAL SPA S.WAVE

• Entry to the THERMAL SPA S.WAVE hot spring and spa facility is prohibited for individuals with connections to organized crime or who have tattoos.
• Children under 12 may only use the 3F ONSEN Floor. The 4F SPA Floor is not available for their use. On selected dates, families can enjoy the special “Breathtaking View Experience with Children” program together at “THERMAL SPA S.WAVE,” available for children aged 4 and above. For details, please visit the link below.
• Swimwear must be worn on the 4F SPA Floor.
• Guests wearing diapers are not permitted in the hot springs.

[Limited to specific dates and staying guests]
Click here for details on the Breathtaking View Experiences with Children.

About the 10% Discount Coupon for Use at “Restaurant” and “THERMAL SPA S.WAVE 4F Spa Bar”

Please present your discount coupon and room card corresponding to the time slot or facility you used at the time of payment.
Please note that this offer cannot be combined with other discount coupons or vouchers.

【Eligible Restaurants】

• Chinese Restaurant “SOU” (Guest Room Tower 1F)
• S.DINING (Spa Tower 1F)
• THERMAL SPA S. Wave 4F SPA Bar (Spa Tower 4F)

*Please note that hotel restaurants may be fully booked, so early reservations are recommended.
*The entire hotel is non-smoking. If you smoke, you will be charged for the actual cost of cleaning bedding, curtains, wallpaper, etc., in addition to compensation for lost business opportunities.
*Please note that operating details may change depending on circumstances.

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