Two horses are seen running in an indoor arena with a sand floor. The arena has a sloped roof with translucent panels that allow natural light to enter. The walls are made of concrete and wood. One horse is white and is in the left portion of the frame. The other horse is brown and is in the right portion of the frame, further away. Both horses appear to be moving at a trot or canter. The overall impression is one of freedom and movement within a controlled environment.