Autrey Mill Nature Preserve and Heritage Center. The preserve’s annual Wild Weekend is timed this year to coincide with Earth Day. The weekend will feature live animal encounters, educational demonstrations, guided nature hikes, games, and more. Apr. 20, 6-9:00 p.m.; Apr. 21, 11 a.m.-3 p.m. 9770 Autrey Mill Road, Johns Creek. 678-366-3511. Non-members: $7 per person; maxium $25/car.
Chattahoochee Nature Center. April 14. 10 a.m.-3 p.m. 9135 Willeo Road. Roswell. 770-992-2055 Adults, $8; ages 3-12, $5; ages 2 and under, free.
Chattahoochee Nature Center. Various events: 10 Great Herbs for the Garden; Spring Bloomers; Wetland Restoration Project (registration required by April 17); Composting Critters; Earth Balloon. April 22. 1 p.m. to 4 p.m. 9135 Willeo Road. Roswell. 770-992-2055 Adults, $8; ages 3-12, $5; ages 2 and under, free.
Gwinnett Environmental and Heritage Center. Come learn how small changes can make big green differences on Saturdays during the month of April. Recycled crafts for the kids, tips and activities on how to make simple, green changes and worm bin demonstrations to show how organic waste can be turned into healthy compost. 10 a.m.-3 p.m. Earth Day festival April 21. 10 a.m-4 p.m. 2020 Clean Water Drive, Buford. 770-904-3500. Adults, $10.50; ages 3-12, $6.50; ages 2 and under, free.
Sope Creek at Chattahoochee Nature Recreational Center. An evening of fun about frogs other amphibians, and reptiles; a campfire with marshmallows to roast; cool children’s “froggy” crafts, frog listening sessions; and night hikes. April 20 and 27. 8:30 a.m.-10:30 p.m. 3760 Paper Mill Rd. Marietta. 678-538-1200. Free. Reservation required. $3 parking fee waived April 27.
Oakhurst Community Garden. The day kicks off with a parade and includes a cake contest, raptors, sheep, food vendors, a community pavilion, live music, children’s crafts, and more. April 22. 1 p.m.-4 p.m. 435 Oakview Road. Decatur. 678-642-4977.
Georgia Tech campus. Day-long series of events, including 70 exhibitors, eco-friendly giveaways, recycling opportunities, a clothing swap, an office supply exchange, live music, and organic popcorn. April 20. 10 a.m.- 3 p.m.