I've seen in my Frommer's guide that you can take a jaunting car ride around Killarney National Park. I've seen other posts since which tell about taking a jaunting car ride from one location to another as well. Is is sort of a fun option to a taxi? If we would like to merely take one around the Park, where is the best place to catch one? Do you need to book ahead? What is the cost? Are there long waits to get one?