The video shows a close-up of a sea slug with a white and blue body, and black outlines. The sea slug is slowly moving across the sandy ocean floor, surrounded by small rocks and seaweed. The water is clear, and the lighting is natural, suggesting that the video was taken during the day. The sea slug's tentacles are visible, and it appears to be exploring its surroundings. There is no visible title, subtitle, or informative text in the video.