The Park Slope Civic Council hosts this ghoulish annual community affair. Marchers should meet on 14th St between Seventh and Eighth Aves starting at 5:30pm to line up. After the procession of giant puppets, bands and more, families can join in on the fun and promenade in their Halloween duds. The parade route leads to an after-party at the Old Stone House and Washington Park in J.J. Byrne Playground. All ages.