Karatsu Seaside Hotel
Witness scenery of the surrounding Karatsu Bay and Niji-no-Matsubara Pine Grove, and savor delicacies of the seas and mountains. Rejuvenate your body and soul in the natural hot springs!
Guest review score
ExcellentAccess
Property facilities
- Parking lot
- Bedrock bath
- Sauna
- Spa / Beauty salon
- Swimming pool
- Restaurant
Explore our rooms and plans
- Bath and toilet available
- Internet available in room
Only 4 rooms left!Free cancellation until 26 NovMealRakuten exclusiveBuffet breakfastBreakfast (restaurant)Price for:1 night||$465.32Taxes & fees incl.Plan details
With Breakfast/east wing room [Buffet breakfast]
Free cancellation until 26/11/2025 12:00 a.m.(JST)
The rooms are in the east wing. With Breakfast. Breakfast is buffet style. Swimwear is required in the spa lounge and 8F spa. Please bring your swimsuit. Please take off your bathing suit in the 'Onsen' (hot spring bath) on the 2nd floor. ※precautions※ Please confirm your reservation details through your registered reservation site. We do not accept inquiries by phone or e-mail regarding reservation confirmations.
$465.32Taxes & fees incl.2 guests 1 night 1 roomPlan benefits- Rakuten exclusive
Meals- Buffet breakfast
Dining locations- Breakfast (restaurant)
Cancellation policyThe penalty charges are based on the original rate of this room. However, if any discounts are applied, the incurred penalties will not exceed the total discounted amount of the reservation.The exchange rate is fixed when booking.Free cancellation deadline26/11/2025 12:00 a.m. (JST)1 day(s) before your stay (from 00:00) (JST)20%0 day(s) before your stay (from 00:00) (JST)80%No-show100%Taxes & fees
IncludedConsumption tax (from 1/10/2019) (Per person per night) 10%
Excluded*Bathing tax (from 1/4/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Only 4 rooms left!Free cancellation until 26 NovMealFree parkingRakuten exclusiveBuffet breakfastBuffet dinnerPrice for:1 night||$564.41Taxes & fees incl.Plan details
Half board / East Wing room [Buffet breakfast] [Buffet dinner]
Free cancellation until 26/11/2025 12:00 a.m.(JST)
The rooms are in the east wing. half board. Dinner is buffet style. Breakfast is buffet style. Swimwear is required in the spa lounge and 8F spa. Please bring your swimsuit. Please take off your bathing suit in the 'Onsen' (hot spring bath) on the 2nd floor. ※precautions※ Please confirm your reservation details through your registered reservation site. We do not accept inquiries by phone or e-mail regarding reservation confirmations.
$564.41Taxes & fees incl.2 guests 1 night 1 roomPlan benefits- Free parking
- Rakuten exclusive
Meals- Buffet breakfast
- Buffet dinner
Dining locations- Dinner (restaurant)
- Breakfast (restaurant)
Cancellation policyThe penalty charges are based on the original rate of this room. However, if any discounts are applied, the incurred penalties will not exceed the total discounted amount of the reservation.The exchange rate is fixed when booking.Free cancellation deadline26/11/2025 12:00 a.m. (JST)1 day(s) before your stay (from 00:00) (JST)20%0 day(s) before your stay (from 00:00) (JST)80%No-show100%Taxes & fees
IncludedConsumption tax (from 1/10/2019) (Per person per night) 10%
Excluded*Bathing tax (from 1/4/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Room details
<East Wing> Deluxe Twin Non-smoking [Deluxe] [Twin room] [Non-smoking] [Ocean view]
- Bath and toilet available
- Internet available in room
- Bath and toilet available
- Internet available in room
- Free cancellation until 26 NovMealRakuten exclusiveBuffet breakfastBreakfast (restaurant)Price for:1 night||$584.26Taxes & fees incl.
Plan details
With Breakfast/east wing room [Buffet breakfast]
Free cancellation until 26/11/2025 12:00 a.m.(JST)
The rooms are in the east wing. With Breakfast. Breakfast is buffet style. Swimwear is required in the spa lounge and 8F spa. Please bring your swimsuit. Please take off your bathing suit in the 'Onsen' (hot spring bath) on the 2nd floor. ※precautions※ Please confirm your reservation details through your registered reservation site. We do not accept inquiries by phone or e-mail regarding reservation confirmations.
$584.26Taxes & fees incl.2 guests 1 night 1 roomPlan benefits- Rakuten exclusive
Meals- Buffet breakfast
Dining locations- Breakfast (restaurant)
Cancellation policyThe penalty charges are based on the original rate of this room. However, if any discounts are applied, the incurred penalties will not exceed the total discounted amount of the reservation.The exchange rate is fixed when booking.Free cancellation deadline26/11/2025 12:00 a.m. (JST)1 day(s) before your stay (from 00:00) (JST)20%0 day(s) before your stay (from 00:00) (JST)80%No-show100%Taxes & fees
IncludedConsumption tax (from 1/10/2019) (Per person per night) 10%
Excluded*Bathing tax (from 1/4/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
- Free cancellation until 26 NovMealFree parkingRakuten exclusiveBuffet breakfastBuffet dinnerPrice for:1 night||$683.18Taxes & fees incl.
Plan details
Half board / East Wing room [Buffet breakfast] [Buffet dinner]
Free cancellation until 26/11/2025 12:00 a.m.(JST)
The rooms are in the east wing. half board. Dinner is buffet style. Breakfast is buffet style. Swimwear is required in the spa lounge and 8F spa. Please bring your swimsuit. Please take off your bathing suit in the 'Onsen' (hot spring bath) on the 2nd floor. ※precautions※ Please confirm your reservation details through your registered reservation site. We do not accept inquiries by phone or e-mail regarding reservation confirmations.
$683.18Taxes & fees incl.2 guests 1 night 1 roomPlan benefits- Free parking
- Rakuten exclusive
Meals- Buffet breakfast
- Buffet dinner
Dining locations- Dinner (restaurant)
- Breakfast (restaurant)
Cancellation policyThe penalty charges are based on the original rate of this room. However, if any discounts are applied, the incurred penalties will not exceed the total discounted amount of the reservation.The exchange rate is fixed when booking.Free cancellation deadline26/11/2025 12:00 a.m. (JST)1 day(s) before your stay (from 00:00) (JST)20%0 day(s) before your stay (from 00:00) (JST)80%No-show100%Taxes & fees
IncludedConsumption tax (from 1/10/2019) (Per person per night) 10%
Excluded*Bathing tax (from 1/4/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Room details
<East Wing> Luxury Twin Non-smoking [Luxury] [Twin room] [Non-smoking] [Ocean view]
- Bath and toilet available
- Internet available in room