The video depicts a vibrant underwater scene with a variety of fish swimming around a coral reef. The fish are predominantly yellow and black striped, with some having blue and white stripes. The coral reef is a mix of brown and purple colors, with some coral formations resembling branches. The water is clear, allowing for a detailed view of the fish and the reef. The fish are seen swimming in different directions, some close to the camera and others further away, creating a dynamic and lively underwater environment.