The video shows a person swimming underwater in a black swimsuit. The person is holding a camera and appears to be recording something. The water is clear and blue, and the person is swimming near the bottom of the ocean. The person then reaches out and touches a fish on the ocean floor. The fish is small and appears to be a type of tropical fish. The person then picks up the fish and holds it in their hand. The fish is still alive and moving slightly. The person then places the fish back on the ocean floor and continues swimming.