Muskegon County Calendar of Events 09/16/19 – 09/23/19 Presented by the Muskegon County Convention & Visitors Bureau www.visitmuskegon.org   Ongoing Events: Planetarium Show: Supervolcanoes “Supervolcanoes” is a free, 30-minute planetarium show that looks at a rare class of large volcanic eruptions on Earth and other planets. See it Tuesday and Thursday evenings at 7:00pm through…… More