Castell de Borriol

Castell de Borriol is a medieval fortress perched above the town of Borriol in the province of Castellón, in Spain's Valencian Community. Its ruins sit on a rocky ridge roughly 330 metres above sea level, surrounded by steep slopes that have made the site naturally defensible for centuries.

Where did the castle come from?

Historians believe a Roman watchtower once stood on this spot, linked visually to other lookout points in the area and tasked with guarding the nearby Via Augusta, the main road connecting Rome with the Iberian Peninsula. The fortress as it stands today, however, dates from the Moorish period, when it served as a key defensive stronghold for the region.

How did ownership of the castle change over time?

Borriol was reconquered from Muslim rule in 1233, and in 1252 King James I of Aragon granted it to the Aragonese military leader Ximén Pérez de Arenós, establishing the barony of Borriol. Two years earlier, in 1250, the same king had granted the town its founding charter (carta puebla). The castle later belonged to the Bishop of Tortosa, Poncio de Torrelles. Over the following centuries it changed hands repeatedly: the Boil y Thous family held it in the 14th and 15th centuries, the Casalduch family in the 16th, and the Boil de Arenós line again in the 17th. Its walls also witnessed armed clashes during the 19th-century Carlist Wars.

What will you see on site?

The castle follows an irregular, five-sided plan covering around 392 square metres. This is where the fortress's main rooms and its water cisterns (aljibes) were located — essential for surviving sieges on a dry, rocky summit. Today the site stands in ruins, though sections of the walls remain upright, letting visitors trace the outline of the original fortifications. From the ridge, wide views stretch across the valley and the surrounding hills of Castellón province.

How do you get there?

Borriol sits right next to Castellón de la Plana, just a short drive from the provincial capital. A walking trail leads from the town centre up to the rocky ridge where the castle stands — the climb is steep, so comfortable footwear and water are worth packing, especially in summer.

When is the best time to visit?

Spring and autumn are the best seasons, offering milder temperatures and a less exhausting climb than in the height of summer. Morning hours also give the best light for photos and help visitors avoid the midday heat on the rocky path.

Frequently asked questions

Is Borriol Castle open to visitors? The ruins are freely accessible — there's no fence or entry ticket. It's an open historical viewpoint reached via a hiking trail from town.

How long does the climb to the castle take? Depending on fitness and pace, the walk up from central Borriol usually takes between 20 and 40 minutes one way.

Is it worth combining the castle with the rest of Borriol? Yes — the town is known for its Moreria quarter (the former Moorish district) and local festivals, making the castle climb a natural addition to a stroll through the centre.

Does the site have visitor facilities like parking or restrooms? The town of Borriol at the foot of the hill has basic tourist amenities and parking, but the summit and the castle ruins themselves have no infrastructure, so plan accordingly.