Leaf peeping is a common activity in New England. It’s an informal term in the United States for the activity in which people travel to view and photograph the fall foliage (or autumn leaves that have changed color), particularly in northern New England and the upper Midwest. An organized excursion for leaf peeping is called a foliage tour.
In the Boston area, you can “leaf peep” at Arnold Arboretum.
Many people rent cars to drive around Massachusetts, Vermont, New Hampshire, and Maine to enjoy the gorgeous colors of fall; it is easy to take a day trip or even to stay overnight at a bed and breakfast.