The Greater Sioux Community Health Center is sponsoring trick or treating for healthy snacks on Monday, November 1, 4:00 - 8:00 p.m. Free flu shots for kids 18 and under will also be offered. Please bring Hawk-i and/or insurance cards. Parents and other adults may also get flu shots for $25.00. The GSCHC is located at 338 1st Ave. NW in Sioux Center (across from city offices).