The video shows a scuba diver swimming underwater in a coral reef. The diver is wearing a black wetsuit and is holding a camera in his hand. The reef is full of various types of coral, including brain coral and staghorn coral, which are visible in the background. The water is clear and blue, and the sunlight is shining through the surface, illuminating the reef and the diver. The diver is moving slowly and carefully, observing the marine life and the coral formations.