The video features a blue whale swimming in the ocean, surrounded by coral reefs and other sea life. The whale is shown in various positions, including swimming upwards and diving downwards. The ocean floor is covered in purple and green coral, and there are starfish visible on some of the coral. The water is a deep blue color, and bubbles can be seen rising to the surface. The whale appears to be the main focus of the video, with its movements and interactions with the environment being the highlight.