I recommend taking the Alaska RR from Anchorage or Fairbanks to Denali NP station. The scenery is spectacular, which is an understatement. Denali NP is over 6,000,000 acres with only one road, mostly gravel and restricted in the park. We decided to stay at the Camp Denali operator, up scale but definitely wilderness, being 90 miles inside the park, with views of Mt. Denali (formerly McKinley) from every cabin or building. The Camp has its own buses that pick up and meet the Fairbanks arrival, the ride is slow so everyone can take photos of the different animals. About half way in, there is a gourmet picnic dinner. Each day every meal is provided, there are guided hikes by naturalists based on hiking skill ability. We chose their Friday arrival and Monday departure. I took over 1000 photos from bears, sheep to tundra turning its fall colors to the Alpenglow to Mt Denali in all its splendor. Denali NP can be seen on the day long tour buses, but to really see the animals, the mountains, etc. you need multiple days. Fairbanks has many attractions from Riverboats to gold mines. A must see tour is going along the Turnagain Arm for the beauty of the mountains and watching the beluga whales teaching their babies to hunt salmon.