Kids can join a costume parade at noon Sunday, Oct. 23, as part of the Petaluma Mothers’ Club Fall Carnival, which runs 11 a.m. to 2 p.m. at Kenilworth Junior High School, 800 Riesling Road. Activities include petting zoo, bake sale, crafts, cupcake walk, magician and music by James K. It’s free for all ages.

Information: 778-6494, petalumamothersclub.org.