In the video, a woman is seen swimming underwater while wearing a snorkel mask. She is swimming near a large whale shark, which is swimming in the same direction as her. The whale shark is quite big and has a distinctive pattern of white spots on its body. The water is clear and blue, and sunlight is shining through the surface, creating a beautiful underwater scene. The woman appears to be in awe of the whale shark and is swimming slowly and carefully to avoid disturbing it. The whale shark seems to be undisturbed by the woman's presence and continues to swim calmly. Overall, the video captures a serene and peaceful moment between a human and a marine creature in their natural habitat.