Bufón de Arenillas

The Bufón de Arenillas consists of twelve water jets that emerge through limestone cracks along the Cantabrian Sea coast, reaching heights of 20 meters.

The geological formation developed over centuries through erosion processes, where rainwater and sea water gradually created an intricate system of underground tunnels.

Local residents named the powerful roaring sounds produced by the geysers the moans of Bromadoriu, which can be heard several kilometers away.

The site remains most active during autumn and winter months when strong waves create optimal conditions for water eruptions through the rock formations.

When waves hit the cliff face, compressed air and water shoot through vertical conduits, propelling small rocks into the air along with the water spray.

GPS coordinates: 43.40750,-4.69278

Latest update: March 15, 2025 08:27