In the video, a scuba diver is seen exploring the underwater world. The diver is wearing a black wetsuit, a yellow mask, and blue fins. The diver is holding a silver oxygen tank and is swimming near a coral reef. The reef is colorful and has various types of coral and fish. The water is clear, and sunlight is shining through, illuminating the reef and the diver. The diver is moving slowly and carefully, observing the marine life and the coral formations.