Spain is full of spectacular churches, but very few have a story quite like the Iglesia de Villanueva de Las Rozas in Cantabria. This is not a place where you wander through ancient naves or admire stained glass windows. Instead, you’ll find yourself standing on the shores of the vast Ebro Reservoir, looking out at a lonely stone tower rising dramatically from the water. It is one of Spain’s most haunting sights.

A village lost beneath the water
The church once stood proudly at the heart of the village of Villanueva de Las Rozas. Like many rural communities, it had been the centre of village life for generations. Weddings, baptisms and funerals all took place within its walls. Everything changed in the mid-20th century when the Ebro Reservoir was enlarged. As the waters rose, homes, farmland and the church itself were sacrificed to create one of Spain’s largest reservoirs. The villagers were forced to leave, and much of the settlement disappeared beneath the water. Only the church tower remained visible, becoming a poignant reminder of the community that once existed here.

The “Cathedral of the Fish”
Locals have affectionately nicknamed the tower “La Catedral de los Peces” – The Cathedral of the Fish. It is an appropriate title. While birds circle overhead, fish now swim where worshippers once gathered. The scene changes with the seasons. During periods of low water, more of the church ruins emerge from the reservoir. In wetter years, only the upper section of the elegant bell tower can be seen breaking the surface. This ever-changing landscape gives every visit a slightly different feel.

A photographer’s dream
The church has become one of Cantabria’s most photographed landmarks. Early morning mist can give the tower an almost ghostly appearance, while sunset bathes the stonework in warm golden light reflected across the still waters. The surrounding reservoir is also an important wildlife habitat. Water birds are common visitors, making the area attractive not only to photographers but also to birdwatchers and nature lovers.




Visiting today
The tower lies close to the village of Las Rozas de Valdearroyo, around twenty minutes from Reinosa. Depending on the water level and current safety measures, visitors may be able to walk close to the tower, although access onto the structure itself has varied over the years as wooden walkways have deteriorated. It’s worth checking local conditions before setting off.

As you can see by the pictures, we visited during the dry season when the Ebro Reservoir water levels were low. Have you been at a different time? We’d love to hear your thoughts.