The video shows a manatee swimming in a body of water. The manatee is dark gray in color and has a long, flat body with a rounded head. It is swimming near the surface of the water, which is clear and has a greenish hue. The manatee is moving slowly and gracefully through the water, occasionally coming up to the surface. The background shows a rocky shoreline with various sizes of rocks and boulders. The water is calm, and there are no other visible creatures or objects in the video.