The video shows a close-up of a rock underwater. The rock is covered in green and red algae. The water is murky, and the visibility is low. The rock is the main focus of the video, and there are no other objects or creatures visible. The algae appear to be growing on the rock, and there are no movements or actions taking place in the video. The colors of the algae are vibrant, with the green algae being more prominent than the red. The rock itself is a dark color, possibly gray or brown, and it is partially covered by the algae.