The video shows a man wearing a snorkeling mask and a snorkel, swimming in the ocean. He is holding a camera in his hand and appears to be taking pictures or recording the underwater scenery. The man is swimming near a red boat, and there is another person in the water with him. The water is clear, and the man is moving slowly, allowing him to observe the marine life around him. The video captures the serene and peaceful atmosphere of the underwater world.