It's a 10 minute trip by bus. If you wait for 20 minutes for the bus, then you should be there in 30 minutes total. If you want to be first in line, you can get on the first bus to AK. They start running an hour before the park opens.
Thank you for all of your responses, Deb in IA. You are the goddess of the transportation board!
So, if the trip is only 10 minutes, should I plan on being at the bus stop by 8:15 for a 9AM opening? That will leave time to wait for the bus. Where is the bus stop in relation to the front door of the hotel?