Yacht Club and Marina is a mile from Stock Island Marina and is cheaper and much quieter. We spent a few months at Stock Island a couple of years ago and we got tired of the hundreds of people wandering up and down the dock
looking in our windows. The service
was great and the amenities too, but there was no privacy. So we changed to the smaller quieter place, it depends what you want.
White Marlin Marina in Marathon is another off-the-radar place: small, clean and well managed. They are putting in a pool over the summer, too.