Fuente de los Banos, Spain

Quick Facts

Experience

Wild / Natural

Access Level

Easy to reach (no hike)

Safety Level

Be mindful

What to Wear

Swimsuit required

Family Friendly

Yes

Entry Fee

Paid

Wheelchair Access

Address

Paraje Fuente de los Banos, 12448 Montanejos, Castellon, Spain

Overview

About Fuente de los Banos

Fuente de los Banos, Spain is a natural thermal spring in a limestone gorge on the Mijares River, 1.7 kilometres from Montanejos town in the province of Castellon, about one hour from Valencia. The spring flows at a constant 25 degrees Celsius throughout the year at 6,000 litres per minute, creating a thermal riverbed approximately one kilometre long. The gorge walls rise almost 15 metres. Written records of the water's therapeutic properties date to 1714, and the water was declared of public utility by Royal Order in 1863.

The bathing area exceeds 100 metres; the canyon grotto at its deepest reaches 3 metres. Water is rich in bicarbonate, magnesium sulfate, calcium, potassium, and iron. In winter, warm spring water against cold air produces steam over the river. Blue Flag certified, the first inland thermal riverbed beach in Spain to hold this distinction. High-season capacity control and advance tickets apply.

Seasonal facilities at the site include toilets, showers, a changing area, and a refreshment kiosk, open in high season only. A seven-pipe stone fountain with ceramic decoration stands at the entrance, where the thermal water can also be drunk. The spring water is also used in the production of a local artisanal beer, La Vidigonera. The Estrecho de Chillapajaros, a narrow canyon gorge, is 1 kilometre upstream.

Location & Access

Getting to Fuente de los Banos

Fuente de los Banos is 1.7 kilometres from Montanejos town along the CV-20 road toward Puebla de Arenoso. From Valencia, take the CV-35 northwest and then the CV-20 toward Montanejos; approximately 90 kilometres and one hour. From Castellon de la Plana, take the A-23 south then the CV-20 west; approximately 75 kilometres and one hour. Montanejos is also reachable from the Catalan coast via the A-7 and inland roads.

Two car parks serve the site. The nearest is a 3-minute walk from Fuente de los Banos on the edge of the CV-20. The second is approximately 1 kilometre away near the Montanejos river bridge. Both car parks charge a fee. In high season, particularly July and August weekends, both car parks fill early in the morning; arriving before 9:00 is strongly advised. A Tourist Train from Montanejos town serves the site in summer. Valencia Airport (VLC) is approximately 90 kilometres southeast.

In high season the site operates capacity control: tickets must be purchased in advance online or at the entrance kiosk. Confirm current ticket requirements and pricing at visitmontanejos.com before visiting, as the system has changed in recent years. Outside high season, access is generally unrestricted but seasonal facilities may be closed. The site is open year-round; winter visits are possible and the steam effect over the warm water in cold conditions is distinctive.

Suitability & Accessibility

Who Fuente de los Banos Suits

Fuente de los Banos suits swimmers and nature visitors who want a natural thermal river experience in a dramatic gorge setting rather than a managed spa or pool facility. The 25-degree water is warm enough to swim comfortably year-round, and the canyon rock walls, clear water, and riverside landscape are the main draw. It suits day-trippers from Valencia (one hour), families who want an outdoor natural swimming day, and active visitors who combine the swim with gorge hiking, canyoning, or kayaking on the Mijares River.

The surrounding area has several activity operators offering rafting, hydrospeed, canyoning, and kayaking on the Mijares River and the Estrecho de Chillapajaros gorge upstream. The Cova Negra cave walk and the Ruta de los Estrechos gorge trail are accessible from near the spring. The village of Montanejos, 1.7 kilometres back along the CV-20, has cafes, restaurants, and a separate Balneario de Montanejos spa for guests wanting formal treatments after the natural swim. The aguas termales of Montanejos are one of the most visited natural thermal sites in the Valencia region.

Wheelchair access is not available at Fuente de los Banos. The route from the car park involves a paved but uneven path, and pool entry requires stepping over rocks into a natural riverbed. Visitors with mobility limitations should note that even within the bathing area, the footing is uneven and the depth increases unpredictably toward the canyon section.

Safety & Etiquette

Fuente de los Banos Safety Tips

Fuente de los Banos is a natural thermal river with no permanent lifeguard on duty year-round. Water depth in the main bathing area is generally shallow near the spring, but the canyon grotto section reaches 3 metres. Do not swim into the canyon grotto unless you are a confident swimmer; the walls are close together and the depth increases quickly. Children must remain in the shallower sections near the spring and must be directly supervised at all times. The flow rate of 6,000 litres per minute creates a steady current; be aware of the direction of flow, particularly after periods of heavy rain upstream when river volume increases.

The water temperature is a constant 25 degrees Celsius at the spring source, but the temperature drops further from the spring as cold river water mixes in. Do not expect uniformly warm bathing conditions; the experience varies with distance from the spring mouth, time of year, and river conditions. In summer, the sun on the dark limestone gorge walls warms the surrounds considerably; bring water and sun protection. Grip footwear is strongly recommended for the rocky entry and exit points. The riverbed is uneven and algae can make submerged rocks slippery.

In high season, capacity control is enforced; follow posted rules and do not leave waste. The Blue Flag certification reflects strong environmental standards and depends on visitor behaviour. After heavy rain upstream, the Mijares River can rise and visibility can drop; check conditions locally before visiting. Regulated activity providers are the safer option for exploring canyon sections beyond the main bathing area.

Frequently Asked Questions

What is Fuente de los Banos in Montanejos?

Fuente de los Banos is a natural thermal spring on the Mijares River 1.7 kilometres from Montanejos, Castellon, about one hour from Valencia. The spring flows at 25 degrees Celsius year-round at 6,000 litres per minute through a 15-metre limestone gorge. The bathing area is over 100 metres long; the canyon grotto reaches 3 metres depth. The water is rich in bicarbonate, magnesium sulfate, calcium, and potassium and was declared of public utility in 1863. Blue Flag certified (first in Spain in a thermal riverbed). Entry fee and advance tickets apply in high season. No permanent lifeguard. Open year-round.

How deep is the water at Fuente de los Banos?

The bathing area at Fuente de los Banos is over 100 metres long. In the main open section near the spring, the water is generally shallow and suitable for standing and gentle swimming. In the canyon grotto corner at the inner end of the bathing area, the depth reaches 3 metres. This deeper section is for confident swimmers only and should not be entered with children or non-swimmers. The depth increases without consistent visual warning from the surface. Stay in the shallower sections if you are uncertain about the depth at any point.

How do I get to Fuente de los Banos from Valencia?

From Valencia, take the CV-35 northwest and then continue on the CV-20 toward Montanejos; approximately 90 kilometres and one hour. By car this is the standard route. In high season, arrive before 9:00 to secure parking; both car parks fill quickly on summer weekends. A Tourist Train connects Montanejos town to the site in summer if the car parks are full. Valencia Airport (VLC) is approximately 90 kilometres southeast.

Is Fuente de los Banos open in winter?

Yes. Fuente de los Banos is open year-round. Because the spring maintains a constant 25 degrees Celsius regardless of air temperature, winter visits are possible and have a distinctive quality: cold air on warm water produces steam over the river surface, creating a dramatic visual effect. Seasonal changing rooms, showers, and the refreshment kiosk operate in high season only and may be closed in winter. Capacity control and advance ticket requirements typically apply only in the main summer season; confirm current off-season access requirements at visitmontanejos.com before visiting.

What else is there to do near Fuente de los Banos?

Montanejos, 1.7 kilometres from the spring, is a small village with cafes, restaurants, and a separate Balneario de Montanejos spa for guests wanting formal spa treatments. The Estrecho de Chillapajaros narrow gorge is 1 kilometre upstream from the spring and can be reached on foot along the riverbank. Activity companies in Montanejos offer kayaking, rafting, hydrospeed, canyoning, and zip-line canyon experiences on the Mijares River. The Cova Negra cave trail and the Ruta de los Estrechos hiking route both depart from near the site. Valencia city is approximately one hour southeast; Castellon de la Plana is a similar distance east.