Stay with ¥1,000 Hotel Credit (Room Only / Spa Not Included)

Enjoy meals and activities with your hotel credit!

Receive ¥1,000 worth of hotel credit per person per night! You can use it at the hotel’s restaurants, for spa admission or treatments, drinks within the spa area, hotel shop purchases, golf, and more.

Check-in 4:00 P.M.／Check-out 10:00 A.M.

Period: September 16 (Tue), 2025–March 31 (Tue), 2026

Exclusion dates: December 6 (Sat), 7 (Sun), 27 (Sat), 2025–January 4 (Sun), 19 (Mon), 20 (Tue), 2026
* Seibu Prince Global Rewards (SEIBU PRINCE CLUB) members save over 5% compared to standard rates! Membership is free. For registration details, see the information at the bottom of the page.

About the Hotel Credit (In-House Voucher)

This plan includes a ¥1,000 hotel credit (in-house voucher) per person per night.
It can be used for dining at restaurants, spa bar drinks, sports activities such as golf and tennis, and other in-house facilities of your choice.

Hotel Credit (In-House Voucher) – Available Locations
– S.DINING (Spa Tower 1F)
– Chinese Restaurant “SOU” (Guest Room Tower 1F)
– THERMAL SPA S. WAVE(Spa Tower 3-4F)
– SEA VOYAGE SHONAN SALON (Spa Tower 4F)
– Oiso Golf Course (outdoor facility within the premise)
– Tennis Court (outdoor facility within the premise)
– Futsal court (outdoor facility within the premise)
– Hotel Shop (Guest Room Tower 1F)
*Please note that advance reservations are required when using SEA VOYAGE SHONAN SALON and sports facilities.

Terms of Use
– Each voucher is worth ¥1,000.
– Valid until the check-out date.
– No change will be given.
– Cannot be exchanged for cash or other forms of value.
– Hotel credits (in-house vouchers) are not eligible for Prince Points.

Hot Spring Information

During your stay, you can enjoy the hot springs on the 3F ONSEN Floor of “THERMAL SPA S.WAVE.” Relax in the open-air and indoor baths fed by the mineral-rich “Oiso Onsen,” known for its body-warming salt content, while taking in the liberating view of the Pacific Ocean.

About Using ”THERMAL SPA S.WAVE” 4F SPA Floor

Guests aged 12 and older can use only the 3rd-floor hot spring area with this plan.
Use of the 4th-floor spa area requires an additional fee.

Fees (Per Adult)
Guests who add the option at the time of booking: ¥1,600 per night
Guests who decide to use it on the day: ¥2,000 per night
*Available from check-in to check-out.
*All prices include tax.

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.
*Guests wearing diapers are not permitted in the hot springs.
*Children cannot use the facility alone. They must be accompanied by a guardian.
*The 4th floor spa area is a swimsuit-required area. We do not have rental swimsuits in children’s sizes, so please bring your own or purchase one at the reception.

Breathtaking View Experiences with Your Children
On selected dates, families can enjoy the special “Breathtaking View Experience with Children” program, available for children aged 4 and above. The 4th-floor spa area of “THERMAL SPA S.WAVE,” normally open only to guests aged 12 and older, will be open for parents and children to enjoy the infinity pool and sauna together. For details on available dates, fees, and other information, please visit the link below:

About the Breathtaking View Experience with Children