Denali National Park is about the size of New Hampshire and it has one road going through it. No access is allowed on this road after the first 13 miles except for Denali tour busses and specially permitted vehicles. As such, the area is pristinely devoid of human interference, and the wildlife may be quite close to the road. Denali tours take between 6-12 hours round trip depending on the season. Take the simpler Denali tour bus instead of the more expensive one.
