The video shows a scuba diver swimming underwater in a cave. The diver is wearing a white helmet and a black and white wetsuit. The cave is covered in green algae and has a sandy bottom. The diver is holding a flashlight that illuminates the cave, revealing the intricate details of the underwater environment. The water is clear, and the light from the flashlight creates a beautiful green hue that illuminates the cave's interior. The diver moves slowly and gracefully through the water, exploring the cave's depths.