Here are the National Scenic Byways and All-American Roads from the Class of 2021, and whom they are best for, based on interests:
Where: Most people start and end near Mukilteo
How far: 440 miles
What: The Cascade Loop is the papa bear byway to three baby bear byways: the Stevens Pass Greenway, the Whidbey Scenic Isle Way and the North Cascades Scenic Byway. The latter road swings through the North Cascades National Park, a free park. (The Great Smokies is also gratis.) Hiking trails and overlooks can double — or even triple — the travel time along the 28-mile section.