The video shows a person swimming underwater in a murky green ocean. The swimmer is wearing a yellow snorkel and is moving slowly through the water. The ocean floor is covered in rocks and coral, and the water is relatively clear, allowing for a good view of the swimmer and the underwater scenery. The swimmer appears to be exploring the ocean floor, moving around the rocks and coral, and occasionally looking up towards the surface of the water. The video captures the serene and peaceful atmosphere of the underwater world.