Cheapest option at this property for 2 adults, 1 child
Price for:
Free cot available on request
Costs 1st night to cancel Cancellation Costs 1st night to cancel If you cancel after reservation, the cancellation fee will be the cost of the first night. If you don't show up, the no-show fee will be the same as the cancellation fee. Prepayment No prepayment needed – pay at the property No prepayment is needed. No prepayment needed – pay at the property
Breakfast included
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About this property
With superb relaxation and spa facilities, including a seasonal outdoor swimming pool, this is a luxurious, modern and renovated historical building in a tranquil setting of Solares. Somo and Loredo Beaches are just 10 km from the hotel, while Santander is 18 km away. Free WiFi is provided and free public parking is available on site. The Castilla Termal Solares rooms are comfortable and modern, with natural light and big windows overlooking the park or the garden. They include a air conditioning, a minibar, and a TV. The bathroom comes with free toiletries, bath, and hairdryer. Guests have access to the hotel's spa, the well-equipped fitness centre, and the indoor and outdoor swimming pools. At night, enjoy traditional regional specialties or international favourites at the Castilla Termal Balneario de Solares restaurant. Plus, delight your palate at El Bosque, an elegant glass-enclosed space surrounded by Cantabrian nature, where tradition and innovation merge in every dish.
Couples particularly like the location — they rated it 8.8 for a two-person trip.
Distance in property description is calculated using © OpenStreetMap
Most popular facilities
- 2 swimming pools (1 open)
- Non-smoking rooms
- Facilities for disabled guests
- Room service
- Fitness centre
- Free WiFi
- Restaurant
- Bar
- Free cot available on request
Guest reviews
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Guests who stayed here loved
- Ris
United Kingdom
“Massive rooms, very comfy beds, great shower and lovely extras like toothbrush and comb and even hair gel supplied. Fantastic!” - Miguel
Portugal
“Breakfast is awesome in terms of both quality and variety. Better than some of 5 start hotels we stayed. The breakfast staff is very attentive and welcoming.” - Katie
Ireland
“Beautiful hotel, really spacious rooms, very clean, amazing thermal baths and excellent breakfast.” - Keith
United Kingdom
“A wonderful hotel - the room was comfortable, the breakfast had everything, and the spa was fantastic. Located in a small town with some interesting restaurants.” - Stu
United Kingdom
“Position, staff good excellent stay before a ferry crossing” - Kip
United Kingdom
“Peaceful hotel, even though it is located in the centre of town. Great breakfast and the restaurant is very good.” - Jess
United Kingdom
“We absolutely loved our stay! The Rooms were super spacious including the bathrooms, the beds were really comfortable and soft! We had breakfast included in the stay and the spread was huge, so much choice. We also had use of the Thermal pool...” - Chris
United Kingdom
“The thermal pool is excellent. Very friendly staff. Stunning building and facilities. Food was very high good quality for dinner and breakfast.” - Linda
United Kingdom
“The hotel was excellent all round! Great pool facilities and food !” - Julie
United Kingdom
“We chose this this due to the closeness of Santander port. The facilities at the hotel, electric car charger, safe parking under the hotel, very spacious and pleasant rooms. The most impressive thing we enjoyed was the breakfast. Wow this was...”
Hotel surroundings
Restaurants
- El Manantial
- CuisineMediterranean • Spanish • European
- AmbianceTraditional
- Dietary optionsVegetarian • Vegan • Gluten-free • Dairy-free
House rules
Child policies
Children of any age are welcome.
To see correct prices and occupancy information, please add the number of children in your group and their ages to your search.
Cot and extra bed policies
The number of cots allowed is dependent on the option you choose. Please check your selected option for more information.
There are no extra beds available at this property.
All cots are subject to availability.





The fine print
Children under 12 years old can use the thermal pool during children's hours.
You can choose the first shift in the morning or the first shift in the afternoon. Check with the hotel for the schedule according to the season.
Children under 12 years old must pay a €50 supplement for breakfast and access to the thermal pool.
If the rate includes access to the thermal pool, a session must be reserved in advance.
If not included in the rate, access to the thermal pool is 38 euros per adult per day.
For December 24 and 31, the only available rates are the special offers that include gala dinner. For more information about menus and supplements for children, please contact the hotel.
Guests are required to show a valid ID and credit card upon check-in.
Please note that all special requests are subject to availability and may incur additional supplements.
Pool 2 - outdoor is closed from Mon 1 Sept 2025 until Tue 30 Jun 2026
License number: G6003