This video captures a serene underwater scene where a jellyfish is seen swimming in the greenish water. The jellyfish has a translucent body with long, thin tentacles trailing behind it. As the video progresses, a person wearing a black swimsuit enters the frame, swimming towards the jellyfish. The person reaches out and gently touches the jellyfish, causing it to move slightly. The person then continues to swim around the jellyfish, observing it from different angles. The water is clear, and the sandy bottom of the sea is visible, adding to the tranquility of the scene.