The image is a map of Cat Island, located in the Gulf of Mexico. The map is color-coded to show the different levels of calm conditions in the area. The top left corner of the map shows the location of the island, while the bottom right corner shows the ocean floor.

The map is labeled with the words "Calm Conditions" and "High Tide + Surge + Waves" at the top. Below the map, there is a bar graph that shows the number of high tide and surge waves in the island. The bars are colored in shades of orange, yellow, and red, indicating the highest and lowest levels of high tides. The graph also shows that the island is not affected by high tides, as indicated by the "Elevations Not Affected" label at the bottom of the image. The USGS logo is also visible in the bottom left corner.