During the summer, my brother and I frequently take his WaveRunners out on the lake that is near his house. We absolutely love to ride them around in the warm weather feeling the cool water splashing on our arms and faces. During the summer, riding in a personal watercraft where you actually get pretty wet is enjoyable because of the warm weather.
During the Fall we take the WaveRunners out far less often. It is too cold to really make the splash from the water enjoyable. We spend more of our time out on the lake in our fishing boats than we do in the smaller watercraft. The plus side of this is that we can really cut back on our consumption of Yamaha 2W oil since we take the WaveRunners out only on the nicest days.