Permits & Reservations. This page includes information about: Bus and campground reservations | Backpacking and mountaineering permits | Permits for other special activities | Note on entrance fees. Permits are not quite the same thing as reservations, although there are similarities. A permit in Denali is for some kind of very specific activity, like mountaineering or backpacking. Getting a permit for a specific activity usually involves talking to a ranger, too, either because the activity is inherently dangerous or because it's really complex and there is information you need from us, and that we need from you, before you visit. Permits & Reservations - Denali National Park & Preserve (U.S. National Park Service)