If shopping is your thing, Freeport is home to L.L. Bean and a bunch of other outlets.
While exploring downtown Portland you'll find plenty of great spots to eat, drink, and shop with great views of the water.
Home to Bissell Brothers Brewery, Wine Cellar Winery, and Stroudwater Distillery, Thompson's Point is a great place to stop for an afternoon! Also check the State Theater concert schedule for outdoor concerts most weekends during the spring and summer! Or if believing the unbelievable is your thing, stop by the world's only Cryptozoology Museum to learn about Bigfoot and see actual hair from the Abominable Snowman!