The video shows a swimmer swimming in a large indoor pool. The pool has multiple lanes, and the swimmer is in one of the lanes. The water is a clear blue color, and the pool is surrounded by white tiles. The swimmer is wearing a dark-colored swimsuit and is moving steadily through the water. The lighting in the pool area is bright, and there are large windows on one side of the pool that let in natural light. The swimmer's movements are smooth and consistent, indicating that they are experienced.