Yeah, I played all 3 the same day, I was by myself and started there right about noon and ended about 530pm, so if you are playing with others it will likely take the entire day from their 10am open to 6pm close time. You can probably still play the Slopeside 9 after 6pm though. I started on the Skyline course and highly suggest starting on it, then the Valley course and then the Slopeside. I can't image the course ever being crowded unless there is a tournament, I only saw two other dgers on the entire mountain and that was in the parking lot, lots of mountain bikers though.