This image captures a section of a rocky Atlantic coastline within the Foz do Douro district of Porto, Portugal

This image captures a section of a rocky Atlantic coastline within the Foz do Douro district of Porto, Portugal. The scene is dominated by irregular, dark brown and reddish-brown rock formations, many partially submerged or wet. Clear to teal-colored ocean water actively crashes against these rocks, generating significant white foam and turbulent currents. Patches of green algae are visible on some submerged rock surfaces. A single, heavily rusted, flat metal bar, approximately one meter in length, is horizontally embedded into the rocks in the lower-center right, spanning a narrow channel of water. No individuals or vessels are present. Bright sunlight illuminates the water and rock surfaces.