The video shows a group of sea lions swimming underwater. The water is clear, and the sea lions are moving gracefully through it. The sea lions are dark gray in color, and their bodies are streamlined, allowing them to move effortlessly through the water. The sea lions are swimming in a group, with some of them closer to the camera and others further away. The sea lions appear to be in a natural habitat, possibly a sea or ocean, with rocks and plants visible in the background. The video captures the beauty and grace of these marine animals as they navigate through their environment.