The operation of the line-up is quite simple. Each surfer waits for his wave, and as the session progresses, a few switches can occur. According to feedback from surfers with a lot of wave experience, after 30 minutes of surfing the rhythm becomes more fluid, with many surfers wanting to rest to fully enjoy their next wave. From this point of view, surfing in a pool differs significantly from surfing in the sea, since continuous physical activity protects from the cold and is relatively intense.