The video shows a close-up of a pile of seaweed and other debris underwater. The seaweed is mostly brown and yellow, with some green algae visible. There are small fish swimming around the debris, and the water is murky, making it difficult to see clearly. The debris seems to be a mix of various types of seaweed, some of which are tangled together. The fish are small and appear to be darting in and out of the debris, possibly searching for food.