The image is a large map of the Atlantic Ocean, specifically the Gulf of Mexico. The map is framed in a blue border and is displayed on a white tiled wall. The top of the map has the words "Sea 21 July" and "Amphibious Force" written in white. Below the map, there is a legend that explains the different colors and symbols used to represent different parts of the ocean.

The map is divided into different sections, each with a different color scheme. The colors range from light blue to dark blue, with some areas being darker blue and others being lighter blue. The symbols include a compass rose, a ship, and a shipwreck. The text on the map is written in black and is in a traditional font. The overall color scheme of the image is blue, green, and gold.