This week

Cops and Kids Target Challenge, Gainesville. Kids compete against Gainesville and Hall County law enforcement officers in marksmanship. 8 a.m. to 1 p.m. Saturday, Chicopee Woods Agricultural Center, 1855 Calvary Church Road, Gainesville. Free. 770-535-8291.

The Fat Finch Bike Ride, Maysville. More than 35 miles. No ride if raining or temperature not predicted to be above 45. 10 a.m. Saturday; leaves from The Fat Finch Cafe, 9169 Gillsville Highway, Maysville. Free. 770-534-7075 or unnloldl@charter.net.

Riding for a Reason, Gainesville. Ride in 45-minute spinning sessions. Benefits Team Green and the Georgia Transplant Foundation. 9 a.m. to 4 p.m. Saturday, Fitness Forum, 1210 Thompson Bridge Road, Gainesville. $15 per ride. 770-535-2985.

Challenged Child 5K and one-mile fun run/walk, Gainesville. Cash and pottery awards; benefits Challenged Child & Friends. Registration, 1 p.m.; events begin at 2 p.m. Sunday. River Forks Park, Gainesville. 770-535-8372, ext. 309.

Upcoming

Arbor Day Celebration, Helen. Learn about the Depression-era Civilian Conservation Corp. Trees will be planted and a limited supply will be given away. 7 to 8 p.m. Feb. 28, Unicoi State Park & Lodge, 1788 Ga. 356, Helen. $3 parking. 706-878-2201, ext. 305.

Bike ride, Cumming. Four-county ride. More than 60 miles. No ride if raining or temperature not predicted to be above 45. Meet for breakfast at 9 a.m.; ride leaves at 10 a.m. Feb. 28 from Old Town Country Restaurant, 1605 Canton Highway, Cumming. Free. 770-534-7075 or unnoldl@charter.net.

Safe boating course, Buford. U.S. Coast Guard Auxiliary. 8:30 a.m. to 4:30 p.m. Feb. 28, Coast Guard Auxiliary Operations Center, 6595 Lights Ferry Road, Buford. $35. Class size limited. Registration required. 770-271-4059 or pblindsey@aol.com.

Ongoing

Senior Ranger Wednesdays, Helen. 9 to 11 a.m. Wednesdays. Trading Post, Unicoi State Park and Lodge, 1788 Ga. 356, Helen. Free. Preregistration required. 800-573-9659, ext. 305 or unicoi_programming@dnr.state.ga.us.

Chicken City Cyclists meeting, Gainesville. 6 p.m. second Thursdays, Pasquale's Italian Restaurant, 1011 Riverside Drive, Gainesville. unnoldl@charter.net.

Lanier Running Club meeting, Gainesville. 7 p.m. first Mondays. Open to runners, walkers, joggers, high and middle school track and cross country. Johnny’s Pizza, 104 Carrington Park Drive, Gainesville. Free. 770-983-1328.

First Saturday Hike, Gainesville. 10-11:30 a.m. first Saturdays. Naturalist-guided hike through the Chicopee Woods Nature Preserve. $5 adults, $3 children ages 2-12, free for members and children age 1 and younger. Elachee Nature Science Center, 2125 Elachee Drive, Gainesville. 770-535-1976.

Georgia Mountains Archaeology Society meeting, Gainesville. Join field studies and categorize artifacts. 10 a.m. to 3 p.m. first Saturdays. Ages younger than 18 should be accompanied by an adult. Elachee Nature Science Center, 2125 Elachee Drive, Gainesville. 770-535-1976.

Trail Crew Work Day, Gainesville. Improve Elachee’s trails. Bring water, lunch, gloves and rain gear; tools, training and afternoon refreshments included. Ages younger than 18 should be accompanied by an adult. 10 a.m. to 3 p.m. first Saturdays. Elachee Nature Science Center, 2125 Elachee Drive, Gainesville. Free. 770-535-1976 to preregister.

ISI Cycling, Gainesville. 25-50 miles. 7:30 a.m. Saturdays, Corinth Baptist Church, 3590 Thompson Bridge Road, Gainesville.

Mountain bike ride with Bike Town USA, Oakwood. All levels welcome. 6:45 p.m. Mondays, Gainesville State College, 3820 Mundy Mill Road, Oakwood. Free. 770-532-7090.

Recreation rides with Habersham Bicycles, Alto. 12 to 22 miles at 7 a.m. Saturdays, 20- to 35-mile fast pace (18-23 mph) rides at 6:15 p.m. Tuesdays, road time trials on Thursdays. Habersham Bicycles, Ga. 365, Alto. No ride if raining. Free. Joe Elam, 706-894-2453.