- Home
- Nationwide Ryokan
- South Kanto (Outside of Tokyo) Ryokan
- Chiba Ryokan
- Kamogawa · Katsuura Ryokan
- Mikazuki Sea Park Hotel Katsuura
Mikazuki Sea Park Hotel Katsuura
Chiba Prefecture／Katsuura OnsenStunning Onsen and all rooms with ocean views, numerous spas, and full of creativity.
Enjoy panoramic views of the Pacific Ocean from our scenic Onsen with spectacular vistas and from Rooms with ocean views. At the separate Aqua Palace building, you can enjoy around 30 types of all-weather spas.
We had a very fulfilling two-night stay in July.The all-you-can-eat meals were all delicious, and we especially enjoyed the salmon roe.Our child absolutely loved the floating water obstacle course and the spa.We also really liked the pillows—so much that we’d love to buy the same ones.Is there anywhere we can purchase them?We’d love to stay again!
Yahoo!トラベルユー... 7/26/2026We stayed in a special Room as three generations at the end of July. The Room was spacious, with a living room, a 12-tatami Japanese-style room, and two beds. The large windows made it feel bright and open, which we really liked.The living room floor felt like carpet and had a somewhat retro feel. It was unclear where outdoor shoes were allowed, so we would have appreciated slippers for use in the Room. There was a TV at the back of the Japanese-style room, but our young grandchildren fell asleep early there, so it would be better if the TV were in the bedroom or living room.It would also help if there were more options on the children’s menu. Having a coin laundry inside the building would be convenient so guests wouldn’t need to go outside in the heat.Thank you for letting all three generations fully enjoy the pool, beach, and spa.
Yahoo!トラベルユー... 8/4/2026
Facilities and Services
See All- Hot spring
| IN | 15:00～18:00 |
|---|---|
| OUT | 10:00 |
| Number of rooms | 186 rooms |
| Pet | Not allowed |
| Your child | Permitted |
Photo
See All![◆ [Japanese-Western Style Room (Example)]](https://www.img-ikyu.com/contents/common/image/acc4/00901934/1/org/11792978.jpg?auto=compress,format&lossless=0&fit=crop&w=200&h=200&q=30)
![[Spa (Example)]](https://www.img-ikyu.com/contents/common/image/acc4/00901934/0/org/11793502.jpg?auto=compress,format&lossless=0&fit=crop&w=200&h=200&q=30)
![◆ [Japanese-Western Style Room (Example)]](https://www.img-ikyu.com/contents/common/image/acc4/00901934/1/org/11792978.jpg?auto=compress,format&lossless=0&w=560&h=370)
- Japanese-Western room
- 45㎡
- Capacity 1~5 people
- Japanese-Western room
- 45㎡
- Capacity 1~5 people
- Japanese-Western room
- 45㎡
- Capacity 1~5 people
Best-Selling Stays
Gourmet Stays
Rooms With Open-Air Baths Popular At Stays
Stays Proud Of Onsen
Popular Accommodation For People In Their 30s
Family-Friendly Pool Accommodation
Accommodation With Beer Server
Accommodation With Family Plan
Recommended Accommodation For High School Student Trips
Stays With High Ratings
Introduction of the Accommodation
Aqua Palace
A fishing port and sandy beach spread out below, with endless blue ocean as far as the eye can see. A spot for wellness, breathtaking views, and unforgettable moments! ■ Hours: 10:00–18:00 (last admission 17:00) Saturdays: 10:00–21:00 (last admission 20:00)
Large Public Bath
The warmth of our natural Onsen soothes the fatigue of everyday life. Enjoy the vast ocean stretching out before you, and savor a true sense of openness and relaxation to your heart’s content. From the women’s bath on the top floor, take in an exclusive panoramic view of the Pacific Ocean. This bath offers a spacious, open-air feel. *Bath towels are provided in the large public bath. Day-use bathing is not available. ■Hours: 15:00–24:00, 5:00–9:00 (next day) Sauna hours: 15:00–21:00
Facilities and Equipment of Accommodation
- The room
- Hot Springs & Baths
- Facilities & Services
- Meal
Basic Information
| Card information | VISA / MASTER / JCB / AMEX / DINERS / Debit card |
|---|---|
| Pets | Not allowed |
| Breakfast | Breakfast: Restaurant (Buffet) |
| Your child | You can stay. |
| Room service | Not available |
| Common amenities |
|
| Facilities and Features |
|
| Outdoor pool |
|
| Indoor pool |
|
| Esthetic Massage | None |
| Fitness gym | None |
| Public Bath |
|
| Spring quality and benefits | Bicarbonate hot spring Neuralgia, Rheumatism / Traumatic Fractures, Burns / Hemorrhoids / Gynecological Disorders / Post-illness Recovery / Stress Relief / Motor Function Disorders / Joint Pain / Muscle Pain / Frozen Shoulder / Digestive Issues / Neuralgia / Wounds / Bruises / Cold Sensitivity |
| Sauna | Available |
| Hot stone spa | None |
| Others | 【Other Available Credit Cards】 UC, DC, NICOS, OMC, AEON, JACCS, ORICO, |
Reviews
- Rooms & Amenities4.14
- Facility3.98
- Hospitality & Service4.22
- Meals3.79
- Onsen & Bath3.95
- Satisfaction4.07
*Reviews that have been translated from Japanese.*
*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*
Access Information
Chiba PrefectureKatsuura-shi, 820 Mokuna
TEL：+81-470-73-1111
About a 5-minute walk from Katsuura Station on the JP Sotobo Line
By car: Approximately 50 minutes from Ichihara Tsurumai IC on the Ken-O Expressway via National Routes 297 and 128
- Parking Information
- Fee
- Free for guests
- Parking time
- ---
- Parking space
- Overall length --- Vehicle width ---Vehicle height 2.2 m
- Number of parking spaces
- 200 cars available Outdoor mechanical
- Valet service
- Unavailable
(Height limit is 2m20cm.)
※ First-come, first-served basis.
※ Additional charges apply if exceeding 24 hours from the entry time.
- Pickup and drop-off information
- Available (Free)Boarding Time: Prior Contact
Boarding Location: Katsuura Station
Condition: At least 1 person
Note: Contact after arrival
Frequently Asked Questions
What are the qualities and benefits of the hot spring water?
The spring quality and efficacy of the hot spring are as follows. ・Spring quality: Bicarbonate hot spring ・Spring efficacy: Neuralgia, Rheumatism / Traumatic Fractures, Burns / Hemorrhoids / Gynecological Disorders / Post-illness Recovery / Stress Relief / Motor Function Disorders / Joint Pain / Muscle Pain / Frozen Shoulder / Digestive Issues / Neuralgia / Wounds / Bruises / Cold Sensitivity
What kind of facilities and features are available?
There are the following facilities and features. Hot spring・Large public bath・Sauna・Within a 5-minute walk from the station・Within a 5-minute walk to the convenience store.・Indoor pool・Outdoor pool・Free shuttle service
I would like to know the access information.
About a 5-minute walk from Katsuura Station on the JP Sotobo Line By car: Approximately 50 minutes from Ichihara Tsurumai IC on the Ken-O Expressway via National Routes 297 and 128
Is parking available?
・Fee： Free for guests ・Parking space： Length --- Vehicle width --- Vehicle height 2.2m ・Number of parking spaces： 200 cars ・Valet Service： Unavailable The parking lot is a multi-story parking facility. (Height limit is 2m20cm.) ※ First-come, first-served basis. ※ Additional charges apply if exceeding 24 hours from the entry time.
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.