The video shows a man wearing a black wetsuit and a snorkel mask, holding a spear gun while swimming underwater. He is surrounded by coral reefs and other sea life. The man is looking around and appears to be searching for something. He then aims the spear gun and shoots at a fish, which is not visible in the video. The water is clear, and the visibility is good, allowing us to see the details of the coral reefs and the man's actions.