Abstract: The present invention relates to a golf swing apparatus that includes, a planar photoluminescent sheet (11) having an upper surface (14) and a lower surface (17), and a golf club (29) that includes a club head (32). The club head (32) includes a sole (35) and an actinic light source (38) that directs a beam of actinic light (41) downward past the sole (35). The upper surface (14) of the planar photoluminescent sheet (11) is adapted to generate an observable photoluminescent line (60) as the beam of actinic light (41) passes over the upper surface (14) as the golf club (29) is swung in a golf swing motion over at least a portion of the upper surface (14). The observable photoluminescent line (60) corresponds to at least a portion of the golf swing motion, such as the follow-through of the golf swing motion.