1) Fall Fest at Canalside, 10 a.m. to 10 p.m. Oct. 8 at Canalside (44 Prime St.). Free to attend.
Commentary: We are knee-deep in fall festival season, and Canalside has attracted a wide variety of vendors for Saturday's festival. Judging by Facebook, roller skating at Canalside - the Ice at Canalside space will be covered (because, as hard as you try, you won't be able to roller skate on water) - looks to be a hugely popular activity, and it's free.
Other notable vendors and activities include Johnny Mac's Inflatable Pub, amusement rides, Duke's Doughnuts, the Saturday Artisan Market, a movie night featuring "Monsters, Inc." and "Hocus Pocus," and the continuation of Fright Night, which you can read more about later in The 10.