Castilla Termal Solares

Castilla Termal Solares

A hotel that will surprise you time after time? Well, that's Castilla Termal Solares. From the moment you first set foot inside, you will be blown away by this place. The 19th-century historic building, surrounded by a large park with century-old trees, is close to the city of Santander and Cantabria's best beaches. The hotel is not only ideally located for exploring northern Spain, it is also the wellness destination par excellence. In 1828, it became the region's first spa and today you can still enjoy the powers of its thermal waters.


Exclusive offer: discounts of up to 20% from 2 nights until 30/09/2024, subject to periods and availability.

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7 standard room



The hotel is open all year round apart from late January to early February.


This hotel offers 113 rooms.


Check-in is from 3 pm onwards. Check-out is at 12 pm. Late check-out is possible on request.


From 164 euros.


  • Your beloved pet is welcome, up to 18 kg for 19 euros per day.
  • Access to the wellness amounts to 35 euros.


The area around the hotel has medicinal mineral water and is one of the largest in Spain. It extends over 5,000 m² and aims to offer a unique wellness experience.

About the rooms

All hotel rooms have large windows and a balcony or terrace. They offer a view of the beautiful estate filled with century-old trees. The atmosphere takes you back to the days of the Belle-Epoque.

Our favourite room

Stay in a Families Superior Room to enjoy a spacious room. All rooms offer stunning views, so none will disappoint you.

Enjoy a refreshing swim

850,000 litres of water are what make the thermal bath irresistible. The water has an average temperature of 32 to 34°C. You will find everything you need to stimulate blood circulation and relaxation, including jacuzzis and hydromassage baths. The outdoor pool is open during the summer period from July to September, the place to be for a refreshing dip under the bright sun.

Work out and wind down

The hotel has an extensive wellness area whose thermal water will boost your general health. Numerous treatments are available to purify your body. Besides the various baths, you can also relax in the sauna and hammam. In addition, you can opt for a massage or beauty treatment. Sports enthusiasts can go to the fitness centre. Furthermore, there are plenty of activities possible in the area such as hiking, cycling, caving in the El Soplao cave, surfing ...


Children of all ages are welcome at Castilla Termal Solares. There is a playground provided for them. The spa offers time slots during which children are allowed. There is also a separate spa for children, however they do need to be accompanied by an adult at all times.

terras castilla termal solares

Food & Drink

top table

Definitely taste the delicious Cantabrian calamari and anchovies.

At El Manantial Restaurant you will enjoy delicious local dishes. Its menu changes every 3 months to take advantage of seasonal produce. You can have breakfast, lunch and dinner at this restaurant. Through the large window in Solares Gastrobar you will enjoy a nice view of the garden and park. The menu offers light dishes prepared with top quality products and seasonal ingredients. It's also the place to go for a delicious cocktail. In summer, the hotel's garden, Solares Summer Terrace, is a must for fresh fish or meat from the market.

wellness castilla termal solares


Castilla Termal Solares is just a few minutes from Santander's beaches, in one of the cities with the oldest spa tradition in Spain. Valladolid is 43 km away, Segovia 76 km away and Salamanca 109 km away.

Are you travelling by plane?

Madrid airport is 159 km away.


A transfer is possible on request.

Do you have a (rental) car?

There is free outdoor parking. Parking in the private garage costs 6.50 euros per day. It is possible to charge your car in the garage.

Caractère review

This beautifully renovated hotel is the ideal base for exploring northern Spain. On top of that, the attentive staff ensure an excellent stay.

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