A close-up, low-angle view depicts the immediate waterline of a sandy beach in Matosinhos, Portugal

A close-up, low-angle view depicts the immediate waterline of a sandy beach in Matosinhos, Portugal. The upper two-thirds of the frame are occupied by a mass of white, aerated sea foam and shallow, turbulent water, characteristic of a receding ocean wave. The foam forms an irregular, undulating boundary with the lower third of the image, which consists of light brown, wet sand. The sand surface exhibits fine granulation and scattered, dark, pinprick-like indentations. No human figures, animals, or artificial structures are present within the scene.