This video showcases the beauty of the ocean's marine life. It features a large jellyfish, with a translucent body and long, flowing tentacles, gracefully moving through the water. The jellyfish's tentacles trail behind it, creating a mesmerizing effect. The video provides information about the jellyfish, stating that they are usually found at depths of 6,000 feet from the surface and above. It also mentions that the lion's mane jellyfish, which can be seen in the Gulf of Mexico, can grow up to 12 feet in length. The video captures the jellyfish's movements and the serene underwater environment.