This place has lots of walking trails through beautiful forests, as well as some markets and stores. It's a great place to try a Maine-classic Whoopie Pie as you're strolling through nature! There's also a cute little botanical garden to explore.
Another great hiking spot in Maine, if you're looking for a relatively easy walk with a beautiful view at the end of the trail. The park is located around 10 minutes from Freeport, is cheap to get in, and is a great picnic spot!
For those interested in the fine arts scene of Maine, this museum is located on the main street of Brunswick and is open to the public and free of charge. It's relatively small size makes it easy to walk around the entire museum in a couple hours.