the marathon...no worries. We were there this year and it was fun to see all the runners, especially afterward in the jacuzzi at SAB, they were all saying how sore they were! Anyway, we went to AK on the day of the marathon, it was fun to see them all running by, but in no way did it impact the crowds. Then that night, you'd see the runners in the parks with their golden Mickey's (?I think thats what they were) hanging around their necks. It was wonderful, the entire week. The rides, walkons, over and over again. Awesome time to go!