In an indoor equestrian arena with a sand floor, a dapple grey horse wearing a reddish-pink saddle pad and a bridle is being lunged by a person. The horse moves at a trot or fast walk in a circular pattern around the person. The person, a male, walks backward while holding a long line attached to the horse's bridle, guiding its movement. The arena features a high, arched roof with multiple skylights that allow natural light to illuminate the space. Large horizontal windows span one end of the arena, revealing a clear blue sky and a line of green trees in the distance, indicating it is daytime with pleasant weather outside. The walls of the arena appear to be constructed with concrete blocks. The overall setting suggests a modern equestrian facility. The activity appears to be a training session for the horse. The scene is set in Estaimpuis, Belgium.