The video begins with a close-up of a crab hiding under a rock. The camera then pans out to show a large coral reef with various types of coral and fish swimming around. The fish are of different sizes and colors, including yellow, blue, and orange. The coral reef is vibrant and full of life, with various types of coral such as branching, plate, and soft coral. The water is clear and blue, and the sunlight filters through, creating a beautiful underwater landscape.