Castilla Termal Solares  

Set in Solares, Medio Cudeyo in Cantabria, Spain — a rural spa escape minutes from Cabárceno Natural Park and a short drive to the Bay of Biscay and Santander ferry terminal.

A Belle Époque spa hotel with 113 air-conditioned rooms (doubles, singles, junior suites and a honeymoon suite), including accessible rooms. Rooms feature minibars, flat-screen TVs, coffee/tea facilities, hairdryers and private bathrooms with bidets. The spa complex centers on a massive thermal pool (over 850,000 liters) with swan-neck jets, bubble baths and a counter-current lane, plus an outdoor summer pool, a summer terrace, lobby bar and a children's playground.

Full-service spa with hot springs, massages, body treatments and facials, a health club and indoor thermal pool technology. Guests who book a package that includes thermal access receive one pool entry per person per night; pool use is subject to stated capacity, timetables and reservations, with dedicated children's-access windows. Other perks include a poolside bar, 24-hour reception, concierge, parking and elevator access.

A 24-hour business center plus conference space and multiple meeting rooms for events, congresses and weddings. Complimentary Wi‑Fi keeps you connected throughout the property.

On-site restaurant serving lunch and dinner, a coffee shop/café, lobby bar and poolside bar. Buffet breakfasts are available daily from 8:00 to 11:00 for a fee, and limited room service is offered.