Hi, we're visiting Whitehorse from July 20 to 23 then need to catch the ferry from Skagway at 3 p.m. on the 23rd. Google says it's a 3 hour drive but I'm wondering how much time to factor in for crossing the border into Alaska. We'll likely just leave Whitehorse after breakfast but I'd like to get an idea of what the border crossing is like. There doesn't appear to be much at the point where the Klondike Hwy crosses the border.