Spain’s Best Thermal Baths and Hot Springs That Romans Knew About First
Romans settled Spain’s thermal areas 2,000 years ago because they knew a good soak when they found one.
These healing waters range from free riverside pools to luxurious spa resorts—and the heat stays perfect year-round.
1. Ourense Thermal Route, Galicia
This Galician city nicknamed “The City of Water” has seven thermal areas along a 4-kilometer stretch of the Miño River.
The Romans discovered these springs 2,000 years ago, and between 3 to 4 million liters still flow daily from deep underground.
Many pools are completely free—including Outariz and Burga de Canedo, the largest open-air thermal area in the region.
Winter visits are magical: imagine soaking in 40°C water while rain falls around you and mist rises from the surface.
The As Burgas fountains in the old town gush water at over 60°C—legend says touching it means you’ll marry in the city.
2. Termas Chavasqueira, Ourense
These Japanese-inspired thermal pools on the Miño River banks combine Zen temple aesthetics with Galician hot springs.
Three thermal pools reach 41°C and are surrounded by beautiful views of the river and surrounding landscape.
The waters reportedly help with rheumatism and asthma, though the views alone provide serious therapy.
It’s close to Ourense’s urban center, making it accessible without sacrificing the feeling of escaping into nature.
3. Alhama de Granada, Andalusia
These thermal baths in the heart of Sierra Tejeda rank among Spain’s most spectacular, with waters reaching 47°C.
The Balneario de Alhama de Granada hotel preserves 12th-century Arab baths that still function today.
You can soak for free in outdoor pools along the river or pay for the full spa experience inside the historic facility.
Granada lies just 57 kilometers away, making this an easy day trip to decompress after palace-hopping.
4. Arnedillo Hot Springs, La Rioja
The valleys of the Cidacos River in La Rioja wine country hide over 500 meters of hand-carved thermal pools in the riverbed.
This UNESCO Biosphere Reserve setting means you’re soaking surrounded by mountains, forests, and vineyards.
Pool temperatures range from 38°C to 48°C, and you can move between them feeling the contrast on your skin.
The entire area is free and public—bring your own towel and settle in for as long as you like.
5. Alhama de Aragón, Zaragoza
This spa town holds Spain’s only natural thermal lake—a two-hectare body of water that stays at 28°C year-round.
Romans first used these waters, and the Termas Pallarés Spa has occupied the site since 1863.
The Hotel Balneario Alhama de Aragón connects to facilities including Roman and Moorish bathhouses.
The town sits about two hours west of Madrid, making it reachable for a weekend wellness escape.
6. Balneario de Archena, Murcia
This award-winning spa complex in the Ricote Valley natural area spreads across over 8,000 square meters of thermal pools.
Waters rich in sulfur, chlorine, and sodium flow through multiple basins at temperatures reaching 50°C.
The thermal mud treatment—slathering on mineral-rich mud then showering it off under hot spring water—is the signature experience.
Three hotels (Termas, Levante, and León) offer different price points for overnight stays.
7. La Fontcalda, Tarragona
On the first Sunday of May, pilgrims walk to these Catalan hot springs believed to have curative powers since ancient times.
The Canaletes River pools stay around 24°C year-round—cooler than other springs but perfect for warm weather soaking.
The setting between the mountain ranges of La Mola and Crestall includes picnic areas and a children’s playground.
Free access and beautiful scenery make this a favorite for families seeking natural relaxation.
