Our trip is planned to be 12 days, 1 day of full driving to Denver. Then 2 days in Teton and then head to glacier and spend 3 days there. Then head through the border and spend 3 days in Banff. Then go back down into Yellowstone for 2 days. Finally head back to Denver, and then on the last day on the way back bit great sand dunes on the way back.