Natural hot spring · Spain
Balneario Real de Las Caldas
Spain · 3.9 miles northwest of Castandiello
Last updated
- Type
- Natural Natural hot spring
- Water temperature
- 104°F (40°C) at the source
- Cost
- Not recorded
- Hours or season
- Not recorded
- Clothing
- Not recorded
- Nearest town
- Castandiello (4 mi / 6 km)
- Coordinates
- Pools or sources
- 2
About Balneario Real de Las Caldas
Balneario Real de Las Caldas is a natural hot spring in Spain, about 3.9 miles northwest of Castandiello. The nearest large city is Oviedo, roughly 4 miles away as the crow flies.
The temperature at the source has been recorded at 104°F (40°C). That puts it in the "classic hot-tub range" range. The range most soakers aim for. 104°F is the upper limit the US Consumer Product Safety Commission recommends for hot tubs.
It is a natural spring with little or no development. Some natural springs have rock pools you can sit in, while others are too hot, too shallow or on land where soaking is not allowed.
The site has 2 mapped pools or sources within about 500 meters of each other, including Aquaxana.
Una histórica Casa de Baños de gran belleza que se alza a través de espacios abovedados, mármoles, piscinas de contrastes, termas de vapor y secas, duchas, piscinas relax con chorros... destacando la Sala de las Columnas y El Manantial.
Description from OpenStreetMap contributors.
Water temperature
Classic hot-tub range. The range most soakers aim for. 104°F is the upper limit the US Consumer Product Safety Commission recommends for hot tubs.
Readings come from OpenStreetMap mappers, and other public sources. Temperatures change with season, flow and pool design. See our soak temperature guide for safe soaking times.
Map and directions
Red marks Balneario Real de Las Caldas. Other colored dots are nearby springs in this directory. Coordinates: 43.33163, -5.92434.
Getting there
- Nearest town: Castandiello. The spring is about 3.9 miles (6 km) northwest of town in a straight line.
- Nearest large city: Oviedo, about 4 miles (6 km) in a straight line.
- Planning from a city? See hot springs near Gijón, Spain.
- Use the directions buttons above for a driving route. Final roads to many springs are unpaved, seasonal or closed in winter, so check road conditions before you go.
Hot springs near Balneario Real de Las Caldas
- Pileta de captación del manantial Not recorded
- Termas Romanas de Lugo 111°F
- A Charca do Alligal de Codesido 68°F
- Balneario de Corconte Not recorded
- Manancial da Burga Not recorded
Before you go
- Check the operator, land manager or park website for current hours, fees and closures. Details in any directory can go out of date.
- Pack out everything you bring, including food scraps. Do not use soap in natural pools.
- Keep your head above water. Warm fresh water can carry Naegleria fowleri, a rare but deadly amoeba that enters through the nose.
- Drink water, limit soaks to 10 to 20 minutes at a time in very hot water, and skip alcohol.
- Read our hot spring etiquette guide and safety guide.
Frequently asked questions
How hot is Balneario Real de Las Caldas?
The temperature at the source has been recorded at 104°F (40°C), which is classic hot-tub range. The range most soakers aim for. 104°F is the upper limit the US Consumer Product Safety Commission recommends for hot tubs.
Where is Balneario Real de Las Caldas?
Balneario Real de Las Caldas is in Spain, about 3.9 miles northwest of Castandiello. The GPS coordinates are 43.3316, -5.9243.
Can you soak at Balneario Real de Las Caldas?
Natural springs vary. Some have pools built by visitors, others are too hot or shallow, and some are on private land or in areas where bathing is banned. Check local rules and test the water before you get in.
What hot springs are near Balneario Real de Las Caldas?
The closest listed spring is Pileta de captación del manantial, about 76 miles east. Termas Romanas de Lugo is about 86 miles away.
What should I bring to a hot spring?
Water to drink, a towel, sandals with grip, a bag to pack out trash, and warm layers for after your soak. At primitive springs bring a headlamp and tell someone where you are going.
Sources and corrections
This listing combines OpenStreetMap. Data last refreshed August 2026. Source 1 Source 2 Source 3 Source 4
Visited recently? Send a correction, such as a temperature reading, fee, closure or photo. If you look after this spring and want it removed, see removal requests.