Quick FactsOverview
About Aquadome, Termas de Unhais da Serra
Aquadome, Termas de Unhais da Serra, Portugal is the first Mountain SPA in Portugal and one of the largest integrated wellness complexes in Europe. It is part of the H2otel Congress and Medical Spa at Avenida das Termas in the village of Unhais da Serra, on the southwest slope of Serra da Estrela in a glacial valley at 750 metres altitude, approximately 20 kilometres from Covilha. The complex is set within the Serra da Estrela Natural Park, the largest protected area in mainland Portugal.
The thermal water is bicarbonated sodic, fluoridated, and sulphurous, emerging at 35.9 degrees Celsius from Serra da Estrela granite. Weak mineralisation (~280 mg/l) and pH 8.3-8.8 suit therapeutic use for respiratory, rheumatic, osteoarticular, digestive, and circulatory conditions. In Portugal this water is classified as termas.
The Aquadome has five zones: AquaTermas (thermal spa with hydromassage pool, Vichy showers, inhalation rooms, steam rooms); AquaFisio (physiotherapy and osteopathy); AquaCorpus (massage, Ayurvedic, Chinese therapies); AquaLudic (leisure pools); and AquaSpa (wellness programmes).
Location & Access
Getting to Aquadome, Termas de Unhais da Serra
Aquadome, Termas de Unhais da Serra is at Avenida das Termas, 6215-574 Unhais da Serra. From Covilha, take the IC6 west and then follow local roads into the Zezere valley toward Unhais da Serra; the drive takes approximately 25 to 30 minutes covering around 20 kilometres through mountain terrain. From the A23 motorway, exit toward Covilha and follow signs toward Unhais da Serra. Free parking is available at the H2otel complex.
By public transport, coach services connect Covilha to Unhais da Serra; check current timetables with local operators as schedules vary seasonally. Covilha has a train station on the Beira Baixa line served from Lisbon (approximately 3.5 hours) and from Porto via Guarda (approximately 3 hours). From Covilha station, a taxi or hired car to Unhais da Serra takes approximately 25 minutes. A private vehicle gives the most flexibility for exploring the surrounding Serra da Estrela region.
Unhais da Serra is a quiet mountain village; the Zezere river beach is a short walk from the complex. Mountain road conditions can be affected by snow in winter; check before driving from Covilha in January and February. Contact H2otel at +351 275 970 030 to confirm opening and book treatments before arrival.
Suitability & Accessibility
Who Aquadome Suits
Aquadome suits adults and families seeking a medically credentialed thermal spa experience in a natural mountain setting. The AquaTermas zone is the primary destination for those following a classic thermal treatment regime; a consultation with one of the complex's doctors determines an appropriate treatment programme combining thermal techniques with physiotherapy as needed. Multi-day programmes of 10 to 14 treatments are available for guests staying at the H2otel, making it suited to a dedicated health and wellness trip rather than a casual half-day visit.
AquaLudic and AquaCorpus are also accessible to visitors who want relaxation and body treatments without a medically prescribed thermal programme. Hotel guests at H2otel have access to the full Aquadome complex as part of their stay. Day visitors can access specific zones and book treatments directly; check current pricing and availability at aquadome.pt or call +351 275 970 030 as advance booking is required for treatment slots.
Aquadome has a wheelchair accessible entrance and suits visitors with mobility limitations better than many older balneario facilities in Portugal. Guests with specific mobility needs should contact H2otel before booking to confirm step-free access for the zones they want to use. The surrounding village paths involve some uneven terrain.
Safety & Etiquette
Aquadome Safety Tips
Aquadome, Termas de Unhais da Serra is a medically supervised wellness complex staffed by doctors, physiotherapists, and trained therapists. The thermal treatments, including inhalation therapies, steam rooms, and hydropressotherapy, are prescribed and administered by qualified practitioners. New visitors undertake a consultation before beginning a thermal programme; inform the consulting doctor of all current medications, medical conditions, and recent procedures before any treatment begins. People with cardiovascular conditions, pregnancy, or active infections should disclose these at consultation as they may affect which treatments are appropriate.
The sulphurous mineral water has a characteristic sulphur smell, which is a natural property of the water and not a hygiene concern. Pool and treatment water temperatures are managed and monitored; the thermal pool operates at a comfortable therapeutic temperature below the source emergence temperature of 35.9 degrees Celsius. Take breaks between pool sessions and drink fresh water regularly. The AquaLudic leisure zone is suitable for families; children in the leisure pool area must be supervised by an adult at all times near the water.
The mountain setting at 750 metres means weather conditions can change quickly. The Serra da Estrela is subject to snow and fog in winter and spring; check road conditions on the approach from Covilha before travelling, particularly from December through March. The Zezere river beach adjacent to the complex is a natural river environment; swimming is at the visitor's own discretion and conditions vary seasonally. Bring warm layers for the return to the hotel or car after spa sessions in cooler months, as the valley setting and altitude can make the air feel cold even on clear days.









