Bike ride, Gainesville. Chicken City Cyclists. Various loops from Dewberry Church. 8-50 miles. Easy to strenuous, rider's choice. 10 a.m. Saturday, Dewberry Church, 4616 Clarks Bridge Road, Gainesville. No ride in precipitation or if the high is predicted to be below 45 degrees. firstname.lastname@example.org.
5K for Kenya, Winder. Benefits The Kenya Initiative. Registration, 8 a.m. Saturday; race, 9:30 a.m., award ceremony, 11 a.m., Fort Yargo State Park, 210 Broad St., Winder. Early registration also available. email@example.com.
"The Secret Stars of Harry Potter," Dahlonega. Learn connections between stars and characters in the "Harry Potter" series. If the sky is clear, the observatory will be open following the show for telescope viewing. Seating limited to 46. 8 p.m. Fridays through April 15. Coleman Planetarium, North Georgia College & State University, 155 Sunset Drive, Dahlonega. Free.
"Stars Over Elachee: Secret Stars of Harry Potter," Gainesville. Dahlonega. Learn connections between stars and characters in the "Harry Potter" series, learn to use a telescope and read a star chart. Reservations required. 5:45-7:45 p.m. Saturday, 6:15-8:15 p.m. March 12 and 7:30-9:30 p.m. April 16, Elachee Nature Science Center, 2125 Elachee Drive, Gainesville. $10 adults, $5 children age 11 and younger; free for Elachee members. 770-535-1976.
Sculpture Design in the Garden lecture series, Cumming. Forsyth County Master Gardeners. Bring a sketchbook and pencil. Part two, 10:30-11:45 a.m. Feb. 26. Bring drawings, garden images, relevant plans and a pencil. Part three details to be announced. Cumming Public Library, 555 Dahlonega Highway, Cumming. Free. 770-887-2418.
Elachee Nature Science Center, Gainesville. Through Feb.: Museum and exhibit hours, 10 a.m. to 2 p.m. Monday-Friday, trails open every day, daylight to dusk. Elachee Nature Science Center, 2125 Elachee Drive, Gainesville. For updates and winter activities, visit the Elachee Web site.
The Historic Downtown Gainesville Market on the Square, Gainesville. Farmers market with plants, herbs, honey, bread and local produce. 2:30-6:30 p.m. Fridays, Main Street Market, downtown Gainesville Square. 678-943-4442 or firstname.lastname@example.org.
Triathlon Club, Gainesville. No experience necessary. Meets 7 p.m. second Tuesdays, Fit 2 Tri Store, 1292 Thompson Bridge Road, Gainesville. 770-712-9129 or email@example.com.
ISI Cycling ride, Gainesville. No ride in rain. 6 p.m. Thursdays, Dewberry Baptist Church, 4616 Clarks Bridge Road, Gainesville. Free. 678-231-0417.
ISI Cycling ride, Gainesville. Three group rides varying in distance from 15 to 60 miles. No ride in rain. 7 a.m. Saturdays, Corinth Baptist Church, 3590 Thompson Bridge Road, Gainesville. Free. 678-231-0417.
ISI Cycling ride, Gainesville. 35- to 50-mile ride. No ride in rain. 1 p.m. Sundays, Kroger Shopping Center, 3630 Thompson Bridge Road, Gainesville. 678-231-0417.