The video depicts a crab with a brownish color and red spots on its body. The crab is situated on a rock, and its legs are visible. The crab appears to be moving its legs, possibly to navigate or explore its surroundings. The rock on which the crab is situated is also brownish in color, with some red spots that match the crab's coloration. The background is blurred, but it seems to be an underwater environment. The crab's movements are slow and deliberate, and it appears to be the only living creature in the frame.