Liendo is a municipality in the autonomous community of Cantabria, Spain, located in its east-coast region, 52 kilometers from Santander, bordering laredo and Castro Urdiales.

The dead end valley is enclosed by mountains and contains a low altitude endorheic river network which drains into a single sinkhole or ponor, known as "Eye of Rucueva" in the neighborhood of Isequilla, a peculiarity characteristic of a polje.

The temple has a porch on the south and gateway half a point in double columns and niches at the top.

Starting from the Iseca Vieja neighborhood, one of the most emblematic is the beach of San Julian, with barely 180 meters in length it is frequented every summer.

The view of the green valley of Valle Liendo from here contrasts with the cliffs from the beach of San Julian.