public void SelectCampground_ReservationByPark()
        {
            string input = "";
            bool   done  = false;

            while (!done)
            {
                Console.WriteLine("Which campground would you like to camp at? (enter 0 to cancel)");

                input = Console.ReadLine();

                if (input == "0")
                {
                    ParkDescription();
                }

                done = helper.CampgroundNameValid(input, campgroundNames);
            }
        }