The public is invited to join the Sable Dunes Audubon Society (SDAS) for our final field trip of the 2021 season on Saturday, Sept.11 at 9 a.m. at the Loomis Street boat ramp parking lot. Join birding expert Dave Dister as we explore the Ludington harbor breakwaters, Stearns beach, and the Sable River outlet and beach at Ludington State Park. Ages 1 to 101 welcome. If you do not have binoculars, they are good at sharing. Masks are encouraged.