The video shows a manatee swimming underwater. The manatee is a large, gray marine mammal with a flat, paddle-shaped tail. It has two small flippers and a rounded snout. The manatee is swimming in a calm and slow manner, and it appears to be looking directly at the camera. The water is clear, and the manatee's movements are gentle and graceful. The video captures the serene beauty of this majestic creature in its natural habitat.