Leis are optional at this year’s Aloha Festival, which celebrates Hawaii and the other Pacific Islands. Delve into island culture with educational exhibits, native cuisine, arts and crafts, and a performance by the Aloha Polynesia dance troupe. Your food donation benefits River City Food Bank.
Oct. 7. Free. (Parking $10.) Cal Expo, 1600 Exposition Blvd.;
(916) 486-6399;