The video shows a manatee swimming in a clear blue water tank. The manatee is large and has a greyish-brown body with a flat, paddle-shaped tail. It moves slowly and gracefully through the water, occasionally turning its body to show different angles. The water is clear, allowing for a good view of the manatee and its surroundings. There are no other visible creatures or objects in the water, and the manatee appears to be alone.