Three areas are delineated on the image and refer to the main text. The first area shows linear structures in the water on the border between the regions of calm and rough water areas. These linear structures are internal waves. The second area identifies a very bright spot in relation to its environment. This is a ship with its radar shadow visible to the right. The third area identifies a linear structure in contrast with its surroundings. This structure is located on the shore. It is a pier with its radar shadow visible to the right.