This guide offers the most accurate information available at the time it is printed. The Trip Planner is made available to visitors at the parks' entrance stations, and online in advance of one's trip. Changes in schedules, weather, and other conditions after publication may result in inaccuracies in the paper. The Trip Planner is published seasonally, at least five times per year.
If you're planning a trip, feel free to check previous issues from the most recent season during which you plan to visit. This will give you an idea of what may be available at that time of year.