Celebrate the season at one of New York's prettiest parks. For eight days families can attend free events in Bryant Park. Stop by one afternoon for City Park Foundation's PuppetMobile's (Sept. 17; 1 to 2 p.m.) crafty performance or sing along with the Vital Theatre Company ( Sept. 18; 1 to 2 p.m.) as they perform from their award-winning shows. With so many activities, there's sure to be something for everyone. All ages.