The video shows a person swimming underwater and exploring a rocky coral reef. The camera captures the person's movements as they navigate through the water, providing a close-up view of the coral and marine life. The colors of the coral are vibrant and diverse, with shades of blue, green, and yellow. The person appears to be wearing a diving suit and is using a flashlight to illuminate the area. The water is clear, and the visibility is good, allowing for a detailed view of the coral and marine life.