The video features a group of jellyfish swimming in the ocean. The jellyfish are shown in various colors, including yellow, orange, and blue. They have long, thin tentacles that trail behind them as they move through the water. The jellyfish are shown in different sizes and shapes, some with round bodies and others with more elongated forms. The video captures the jellyfish from different angles, providing a close-up view of their delicate and intricate structures. The water around them is clear, allowing for a detailed view of the jellyfish and their movements.