The Ria

The Ria

It is the mouth of the Butron River, which passes through the municipality of Plentzia and flows out into the Cantabrian Sea.

One of the architectural landmarks of the river area is the "new bridge": a white, cable-stayed pedestrian bridge of approximately 150 metres in length. Designed by architect Javier Manterola and built in 1991, it replaced the old bridge, which was washed out due to the numerous floods of the Butron River resulting from the August 1983 floods in the Bilbao Metropolitan area, with the Old Quarter of Bilbao being most seriously affected.

Plentzia

The right bank of the ria is spotted with small vessels and offers a very pleasant walk. The estuary forms a splendid natural bay which includes the beaches of Gorliz and Plentzia. In Gorliz, at the end of the promenade, we will find the Petrified Dunes, of great geological value. Leaving the beach behind, a path will take us to Billano Cape and its lighthouse, which houses an old defence battery, some bunkers and a rusty cannon.

Plentzia
  • Plentzia estuary