The video shows a swimmer in a pool, performing the breaststroke. The swimmer is wearing a swim cap and goggles, and is moving through the water with their arms and legs in a coordinated manner. The pool is marked with lane dividers, and there are other swimmers in adjacent lanes. The swimmer's movements are smooth and rhythmic, and they appear to be swimming at a fast pace. The water is clear and blue, and the pool area is well-lit.