The video shows a seal swimming in the ocean. The seal is seen swimming underwater and then emerges to the surface, where it is seen bobbing up and down in the water. The seal's body is mostly gray with a lighter underbelly, and it has a streamlined shape that allows it to move smoothly through the water. The ocean water is a deep blue color, and the waves are small and gentle. The seal appears to be alone in the water, with no other animals or objects visible in the video.