The term "best waves" refers to a surfer's ideal or perfect wave. It is often used by experienced surfers to describe a wave that has the right size, shape and speed for riding. The best waves are typically powerful, hollow and barrel-shaped, allowing the surfer to perform complex maneuvers and tricks while riding them. In addition, they offer an exhilarating ride with smooth transitions from one section of the wave to another. Overall, "best waves" refer to those that provide a challenging yet enjoyable experience for experienced surfers.