A national park is a great summer vacation option.
Problem is, parks can be crowded in high season.
But in low season, you might meet bad weather and not have the same experience.
They found that, overall, October was the best month to visit.
Aspens, cottonwoods, oaks, willows, dogwoods and more are all putting on their autumn best.
But of course, thats just overall.
When is the best time to visit US and Canadas National Parks?| Lonely Planet
Photo byEmbee.
