Little Brown Bat Hike, 7:30-9 p.m. Sept. 15, $2 program fee plus $5 park pass

Astronomy, 9-10 p.m. Sept. 17, $3 program fee plus $5 park pass

Tails on Trails Dog Hike, 11 a.m. to 1 p.m. Sept. 18, $2 program fee plus $5 park pass

Off Trail Slough Exploration, 4-6 p.m. Sept. 18, $2 program fee plus $5 park pass

Magnolia Trail Bike Ride, noon to 2 p.m. Sept. 22, $2 program fee plus $5 park pass

Cleanup Day, 9 a.m. to 4 p.m., Sept. 24, lunch provided for volunteers

Tails on Trails Dog Hike, 11 a.m. to 1 p.m. Sept. 25, $2 program fee plus $5 park pass

Flora, Fauna and Fungi, 4-6 p.m. Sept. 25, $2 program fee plus $5 park pass

Tails on Trails Dog Hike, 11 a.m. to 1 p.m. Sept. 26, $2 program fee plus $5 park pass

Call (912) 727-2339 for more information or email questions to fortmcallister.park@gadnr.org.