We spent three days inside Denali National Park. This is a truly special place. Having been designated a wilderness area by the government, human impact is the lowest we've ever seen in any park. The only traffic allowed inside is the designated park bus system and those who have been allowed special permits. The single route in is an unpaved, 98 mile long, winding, and occasionally cliff-side road which we rode, glued to the windows looking for wildlife, and were lucky to have joined the "30% club" of visitors who have seen the 20K ft. high Mt Denali instead of walls of clouds in its direction. There are few trails within the park - instead, hikers and backpackers are asked to tread carefully and spread out to lessen their impact on the fragile tundra.
We are already thinking about our return trip where we plan to backpack through the park!