Exploring the underground wonders: Les Coves de Sant Josep in Vall d’Uixó



Vall d’Uixó, a beautiful corner of the Valencian Community in Spain, hides a natural and cultural treasure that deserves the attention of all lovers of adventure and underground beauty: Les Coves de Sant Josep. This cave system represents the longest cavity in the province of Castellón and the second in the entire Valencian Community. It is the longest navigable underground river in Europe and is a geological wonder that will transport you to an underground world full of mystery and wonder.

Located just 2 kilometers from the center of Vall d’Uixó, the Coves de Sant Josep were developed in the Middle Triassic period and offer a unique experience that combines nature, history and adventure. The tour begins in the underground San José River, where you will board a barge to navigate the impressive river that has sculpted these caves for thousands of years. The tranquility and enveloping darkness will make you feel like you are exploring a forgotten world.

As you move along the river, you will witness the magnificent work of nature. Stalactites and stalagmites of various shapes and sizes hang from the ceiling and emerge from the ground, creating formations that defy the imagination. Strategically placed lights highlight the beauty of these structures, creating a visual spectacle that will leave a lasting impression on your mind.

But Les Coves de Sant Josep are not just a whim of nature; They also have a rich history. During the tour, you will discover vestiges of human occupation that date back to about 17,000 years ago. This is demonstrated by the archaeological sites found at its entrance, from paintings dating from the Magdalenian period to engravings in the rock. The importance of these sites has led them to be declared a Site of Cultural Interest and World Heritage by UNESCO.

Boat ride, adventure visits and “Singing in the Cave”

The visit to the Coves de Sant Josep is suitable for all ages and levels of physical condition, since they are done by boat and have well-lit walkways and paths. The tour guides are knowledgeable and passionate about the geology and history of the region, adding significant value to the experience.

The visit lasts approximately 40 minutes and includes an 800-meter boat ride and a 250-meter walk. Inside there is a constant temperature of 20ºC throughout the year.

For those looking for a more adventurous experience, special “speleokayak” tours are offered, taking the tour with physical activity and choosing between single or double kayaks. This provides a unique perspective on underground geology and biodiversity. In addition, you can also take the “Sants de la Pedra” via ferrata, located in the Cingles de Tido area, over the Aigualit ravine in the Vall d’Uixó, which offers spectacular views of the 119 meters of route. this municipality, located halfway between the mountains and the Mediterranean Sea.

And if you like to combine sightseeing with music, you will love the “Singing in the Cave” experience, with live concerts enjoyed inside the caves and with small groups.

In short, Coves de Sant Josep are a hidden treasure in Vall d’Uixó that will leave you amazed. Whether you are a nature lover, a history buff, or simply someone looking for a unique experience, these caves offer you an adventure you will never forget. So don’t miss the opportunity to explore this underground world of wonder and beauty on your next trip to Bonterra Resort.

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Condiciones de reserva

Estancias mínimas

Consultar estancias mínimas de reserva según temporada.


Las condiciones de reserva son las siguientes:

  • Alojamientos: 25% del importe total de la estancia al formalizar la reserva.
  • Parcelas: 25% del importe total de la estancia al formalizar la reserva.

El resto será abonado a la llegada. Las reservas se confirmarán cuando se reciba el depósito anteriormente mencionado.

Bonterra Resort se compromete a reservar un tipo de parcela o alojamiento, pero nunca uno en concreto.

Las reservas de parcelas se realizarán para un mínimo de dos personas.


La devolución del depósito de la reserva se realizará como se detalla a continuación: con más de un mes antelación: 90% del depósito; entre 7 y 30 días de antelación: 50% del depósito; menos de 7 días de antelación: 0% del depósito.


La reserva que no llegue el día previsto, se mantendrá durante 24 horas. A partir de este momento, la reserva se considerará nula, excepto previo aviso por escrito.

Booking conditions

Minimum stay
Please check minimum stay requirements depending on the season.

Booking conditions are as follows:

  • Lodging: 25 % of total price on formalizing the booking.
  • Pitches: 25% of total price on formalizing the booking. The rest is to be paid on arrival.

Bookings will be confirmed on receipt of the above-mentioned deposit. Bonterra Resort guarantees the booking of a pitch or accommodation, but not the exact one. Pitch bookings are for a minimum of 2 people.


The refund of the booking deposit will be made as detailed below: more than one month in advance: 90% of the deposit; between 7 and 30 days in advance: 50% of the deposit; less than 7 days in advance: 0% of the deposit.

The booking of a guest that does not arrive on the scheduled day will be maintained for 24 hours. After this time, it will be considered void, except in case of previous written notice.