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- Izu Atagawa Onsen Hotel Cetus Royal
Izu Atagawa Onsen Hotel Cetus Royal
Shizuoka Prefecture／Atagawa OnsenBuffet with fresh ingredients, blue dome pool, all rooms with ocean view, and open-air hot spring bath with natural hot spring water for a luxurious time.
All Rooms in the Property offer ocean views, and the grand bath with a stunning view of Izu Oshima uses natural Onsen water from a private source. The Izu Peninsula's largest "Ohnotenburo" features 100% natural flowing spring water, allowing guests to enjoy bathing in nature while basking in the morning sunlight or gazing at the star-filled night sky. Dinner is served as a buffet featuring seasonal ingredients, and breakfast offers a Japanese-Western buffet. Additionally, the dome pool "Blue Whale" provides a unique "blue time" experience that cannot be found in everyday life. From every Room, guests can enjoy views of Izu Oshima and the other islands of the Izu Archipelago.
Two women who love alcohol stayed here.The welcome drinks and oden were a nice touch.Beer, sparkling wine, sake, and more.When the oden ran low, the staff quickly refilled it.Dinner included all-you-can-drink plus all-you-can-eat crab, and it was great to relax with more drinks in the lounge after dinner as well.The pool is fully visible from outside, so it might feel a bit embarrassing...The udon after drinking was delicious too!We checked in early and were able to make a Reservation for a private bath time slot before dinner.Because it’s outdoors, it felt open and very refreshing.With dinner and breakfast included plus unlimited alcohol at this price, we were truly happy—this is a Hotel we’d like to stay at again.
Yahoo!トラベルユー... 2/18/2026The ocean view from the Room is amazing. The Room feels a bit dated, but it was spacious. For dinner, we chose simmered golden eye snapper and grilled abalone, and we were lucky to also enjoy all-you-can-eat crab. With all-you-can-drink alcohol as well, we were very satisfied with dinner. The best part was the ocean-side open-air bath—it felt so open and was truly wonderful. We would love to stay again if we have the chance.
Yahoo!トラベルユー... 1/30/2026
Facilities and Services
See All- Hot spring
| IN | 15:00～22:00 |
|---|---|
| OUT | 10:00 |
| Number of rooms | 48 rooms |
| Pet | Not allowed |
| Your child | Permitted |
Photo
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- Japanese-style Room
- Capacity 1~5 people
- Japanese-style Room
- Capacity 1~5 people
- Japanese-style Room
- Capacity 1~5 people
Best-Selling Stays
Stays Popular For Ocean View
Rooms With Open-Air Baths Popular At Stays
Stays Proud Of Onsen
Stays With High Ratings
Accommodation With No Meals Included
Gourmet Stays
Hotel Popular For Public Bath
Popular Good Value Stays
Relaxing Japanese-Style Accommodation
Introduction of the Accommodation
"Large open-air bath overlooking Sagami Bay"
The largest "Oono Tenburo" in the Izu Peninsula offers 100% natural Onsen water directly from the source. Enjoy the atmosphere of bathing in the midst of untamed nature, basking in the morning sunlight or gazing at the star-filled night sky. ● Oono Tenburo The large public bath, utilizing the Shimami spring with weak sulfate Onsen water, has benefits for disinfecting and beautifying the skin. Both the men's and women's baths are equipped with saunas. ● Private Open-Air Bath Experience a different ambiance with the "Night Private Bath." Enjoy the largest "Oono Tenburo" in the Izu Peninsula as your own private space. On clear nights, you can also admire the starry sky. ● Onsen Large Public Bath The scenic large public bath uses natural Onsen water from our private spring. It offers a panoramic view of Sagami Bay and the Izu Seven Islands. <Operating Hours> Moonlit Bath: Women / 16:00–22:00, Men / 6:00–9:00 Starlit Bath: Men / 16:00–22:00, Women / 6:00–9:00 Private Open-Air Bath: 22:00–25:00, 30 minutes per group/session (Reservation required)
Facilities and Equipment of Accommodation
- The room
- Restaurant
- Facilities & Services
Basic Information
| Taxes | From March 1, 2025, it will be 300 yen per person per day (per night). |
|---|---|
| Card information | VISA / MASTER / JCB |
| Pets | Not allowed |
| Breakfast | [Breakfast] Restaurant (Buffet) |
| Your child | You can stay. |
| Room service | Not available |
| Common amenities |
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| Facilities and Features |
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| Indoor pool |
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| Esthetic Massage | None |
| Fitness gym | None |
| Public Bath |
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| Open-air bath |
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| Spring quality and benefits | Simple Onsen / Na Chloride Spring Neuralgia Rheumatism / Women's Diseases / Post-illness Recovery Stress Relief / Joint Pain / Muscle Pain / Frozen Shoulder / Digestive System / Arteriosclerosis / Sensitivity to Cold ※Regarding the notation of "Gensen Kakenagashi" |
| Sauna | Available |
| Hot stone spa | None |
| Others | [Other Available Cards] Rakuten Card |
Reviews
- Rooms & Amenities3.74
- Facility3.85
- Hospitality & Service4.44
- Meals3.85
- Onsen & Bath4.33
- Satisfaction4.19
*Reviews that have been translated from Japanese.*
*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*
Access Information
Shizuoka Prefecture980 Naramoto, Higashiizu-cho, Kamo-gun
TEL：+81-557-23-1123
[Izukyu Line] Get off at Izu-Atagawa Station, approximately 5 minutes on foot
[By Car] Use Route 135 from Odawara-Atsugi Road, Ishibashi IC
- Parking Information
- Fee
- Free for guests
- Parking time
- ---
- Parking space
- No restrictions
- Number of parking spaces
- 40 cars available outdoor
- Valet service
- Unavailable
- Pickup and drop-off information
- Available (Free)Check-in: 15:00 - 18:00. Please call us upon your arrival at the station.
Check-out: 9:00 - 10:00.
Frequently Asked Questions
What are the check-in and check-out times?
Check-in 15:00～22:00 Check-out 10:00
What kind of facilities and features are available?
There are the following facilities and features. Hot spring・Open-air bath・Free-flowing hot spring・Large public bath・Sauna・Within a 5-minute walk from the station・Indoor pool・Free shuttle service
I would like to know the access information.
[Izukyu Line] Get off at Izu-Atagawa Station, approximately 5 minutes on foot [By Car] Use Route 135 from Odawara-Atsugi Road, Ishibashi IC
Is parking available?
・Fee： Free for guests ・Parking space： Length --- Vehicle width --- Vehicle height --- ・Number of parking spaces： 40 cars ・Valet Service： Unavailable First-come, first-served basis. Reservation not available.
Is an internet connection available?
Connection is possible. ・Wi-Fi is available. For more details, please refer to the room and plan information.
Is there a sauna?
Yes, there is.