La Vall d’Uixó: Discover the Home of Europe’s Longest Navigable Underground River
La Vall d’Uixó is one of the most fascinating towns in the province of Castellón. Located between the Mediterranean coast and the Sierra de Espadà Natural Park, it offers an excellent mix of natural beauty, history and outdoor adventure. While many visitors come to explore its famous underground river, they soon discover a welcoming town with historic streets, archaeological sites and excellent walking routes.
The town enjoys a mild Mediterranean climate throughout much of the year. As a result, it is an ideal destination in every season. Whether you enjoy nature, culture or local gastronomy, La Vall d’Uixó has plenty to offer. Better still, many of its attractions sit within easy reach of one another, making sightseeing simple and enjoyable.
What to see and do
The highlight of any visit is the Coves de Sant Josep. These spectacular caves contain the longest navigable underground river in Europe. Visitors travel through the caves by boat before continuing on foot to admire impressive rock formations, prehistoric cave paintings and crystal-clear water. It is one of the most unique attractions in Spain and tickets regularly sell out during busy periods. Buy Tickets.
Above the caves lies the Sant Josep Iberian Settlement. This archaeological site dates back more than 2,500 years and reveals how Iberian communities lived long before Roman rule. Guided tours explain the excavated homes, defensive walls and fascinating history of the settlement.
Spend time exploring the Paraje de Sant Josep. This attractive natural area surrounds the caves and offers picnic areas, shaded walking paths, cafés and children’s play areas. It is an excellent place to relax before or after visiting the underground river.
Outdoor enthusiasts can follow the scenic Camí de l’Aigua. This pleasant walking route follows the historic water system through the town. Along the way, you will discover old fountains, irrigation channels and the Roman-medieval Aigualit aqueducts. The trail combines history with attractive countryside views.
History lovers should also visit the remains of the Línea XYZ. This extensive defensive line played an important role during the Spanish Civil War. Several restored trenches and bunkers remain accessible and provide an interesting insight into Spain’s twentieth-century history.
Take time to wander through the historic centre of La Vall d’Uixó. The town developed around two traditional districts known as Poble de Dalt and Poble de Baix. Narrow streets, quiet squares and traditional houses reflect centuries of local history. The charming Plaza del Ángel and Plaza de Sant Vicent are perfect places to stop for a coffee.
The Church of the Holy Angel stands in the upper part of the town and dates back several centuries. Meanwhile, the Church of the Assumption dominates the lower district with its elegant Baroque architecture. Both churches provide an interesting glimpse into the town’s religious heritage.
If you enjoy hiking, the surrounding foothills of the Sierra de Espadà Natural Park offer numerous walking routes. These trails pass through forests, citrus groves and rocky landscapes while providing excellent views across the surrounding countryside. Spring and autumn are particularly pleasant times to explore the area.
For something more adventurous, consider one of the guided espeleokayak experiences available at the caves. These special tours allow visitors to paddle through sections of the underground river that are not included in the standard visit. It is an unforgettable experience for adventurous travellers. Buy Tickets.
Finally, finish your day by enjoying local cuisine in one of the town’s restaurants. Regional dishes often feature fresh vegetables, locally produced olive oil, rice dishes and grilled meats. Pair your meal with a wine from the nearby Valencian wine regions to complete an authentic dining experience.
Local festivals and traditions
La Vall d’Uixó has a strong festival calendar that brings the town to life throughout the year. These celebrations combine religion, music, food and local customs. They provide visitors with a great opportunity to experience authentic Valencian culture.
The most important event is the Fiestas Patronales de San Vicente Ferrer. This festival takes place after Easter and is recognised as a Festival of National Tourist Interest. The programme includes processions, concerts, traditional dances, fireworks, horse events and local food celebrations. Visitors can also taste typical products such as coca, mistela and the traditional empedrao stew.
Another popular tradition is the Fiestas dels Barris. These neighbourhood festivals run across different parts of the town during spring and summer. Each district celebrates its own patron saint with music, street parties, communal meals, processions and activities for families. These events show the strong community spirit of La Vall d’Uixó.
During August, visitors can enjoy several local celebrations. The Festes del Pantà combine traditional food, live music, religious events and family activities. They offer a relaxed way to experience village life away from larger tourist festivals.
Food also plays an important role in local traditions. The town’s location between the Mediterranean coast and the Sierra de Espadà has created a cuisine based on rice, vegetables, citrus fruits and rural recipes. One of the best-known dishes is empedrao, a hearty rice dish with deep roots in the local area.
Where to stay
The best area to stay in La Vall d’Uixó depends on your travel style. For visitors who want easy access to restaurants, shops and historic attractions, the town centre is the most convenient choice. Staying near Plaza del Centro or the traditional streets of Poble de Baix places you close to everyday local life.
The Poble de Dalt area is a good option for travellers who enjoy history and atmosphere. This upper district features traditional streets and provides easy access to some of the town’s oldest buildings. It is also a peaceful base after a day exploring the caves and surrounding countryside.
Visitors coming mainly for the Coves de Sant Josep may prefer accommodation closer to the Sant Josep area. This location allows quick access to the underground river, walking routes and natural spaces. It is especially suitable for travellers planning outdoor activities.
For a quieter experience, consider rural accommodation around the edges of La Vall d’Uixó. The nearby countryside offers views of citrus orchards, hills and the Sierra de Espadà landscape. These properties are ideal for couples, walkers and travellers seeking relaxation.
There are also practical options for visitors travelling by car or campervan. The town provides facilities for travellers who want flexibility while exploring Castellón province and the surrounding coastal towns.
How to get to La Vall d’Uixó
The closest airport is Castellón–Costa Azahar Airport. Book flights. The airport is around 45 kilometres from La Vall d’Uixó and offers a convenient option for visitors travelling from selected European destinations.
Many international visitors also use Valencia Airport. Book flights. The journey from Valencia to La Vall d’Uixó takes about 45 minutes by car.
Travelling by train is possible via nearby stations in Castellón de la Plana or Valencia. These cities connect with major Spanish destinations, including Barcelona and Madrid. Check connections.
Bus services also connect La Vall d’Uixó with Castellón and other towns in the Valencian Community. This can be a useful option for travellers without a car. Buy Tickets.
Hiring a car is one of the easiest ways to explore La Vall d’Uixó and nearby attractions. A vehicle gives you the freedom to visit the Sierra de Espadà, coastal towns and smaller villages at your own pace. Hire a Car.
The town is located close to the A-7 motorway and the N-340 road. Drivers can easily reach La Vall d’Uixó from Castellón, Valencia and other parts of eastern Spain.
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Thanks to its excellent location, La Vall d’Uixó works well as both a day trip destination and a longer stay. Visitors can enjoy its natural wonders, historic sites and traditional atmosphere while remaining close to the Mediterranean coast.