The subject of this painting is the port of Naples in Italy. We see a large sailing ship and a lighthouse, lit up on top of a cliff. The intense blue of the sky and the gray clouds suggest the hour of twilight. The small scenes of fishermen on the right and people around a campfire on the left, preparing the evening meal, introduce an element of the picturesque. The full moon is almost in the center of the painting, and its reflection is seen in the water.