Termas de Entre-os-Rios
Penafiel, Porto, Portugal
Temporarily closed— Closed for remodelling
Historic sulphurous thermal spa on the Douro at Entre-os-Rios, run by INATEL, with balneotherapy, wellness and a 42-room hotel.
About
Termas de Entre-os-Rios is a historic thermal spa set at Quinta da Torre in Eja, Penafiel, on the banks of the Douro near its confluence with the Tamega. Sought since the late 19th century for rest and treatment, the station is today operated by the INATEL Foundation.
Sulphurous thermal water
The spring yields a weakly mineralised, sulphurous water of the bicarbonate-sodium type, emerging at around 18C with a pH near 8.7. It is drawn from roughly 120 metres underground, which helps keep it bacteriologically and chemically stable.
Pools & balneotherapy
- Immersion and hydromassage baths
- Vichy and needle (jet) showers
- Steam baths, inhalations and aerosols
- Dedicated paediatric thermal programmes
The waters are indicated for respiratory conditions (ENT and lung), rheumatic and musculoskeletal complaints, and skin disorders.
Spa & wellness
Wellness options include general and partial massages alongside hydromassage baths and needle showers.
Hotel
The thermal baths are served by an INATEL hotel unit with 42 fully equipped rooms, plus a restaurant and bar, meeting room, chapel, sports facilities and private parking. The property has recently been closed for remodelling.
Water
- Certified medicinal water
- Yes
Source: dgeg.gov.pt · Checked Aug 10, 2026
Facilities
- Wellness
- Medical treatments
- Hotel
- Restaurant
Only facilities that are recorded are listed. An absent entry means nobody has recorded it, not that it is missing.
Location
Penafiel
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Location data © OpenStreetMap contributors, ODbL.