This week

Bike ride, Pendergrass. Loop ride with six, 11, 20 and 50 mile loops. Chicken City Cyclists. 10 a.m. Saturday. Leaves from the park one block west of U.S. 129 and Ga. 332. 770-534-7075 or unnoldl@charter.net.      

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. Saturdays. Elachee Nature Science Center, 2125 Elachee Drive, Gainesville. Free. 770-535-1976 to preregister. 

Lunch and Learn Gardening Series, Gainesville. "Tomato Gardening" led by Ron Brechter. Noon and 6 p.m. April 8, Hall County Library main branch, 127 Main St., Gainesville. Free. 770-532-3311 ext. 114.

Upcoming

Bike ride, Gainesville. More than 55 mile ride in Unicoi Gap and Dick's Creek Gap. 10 a.m. April 11, Providence Baptist Church, near the intersection of Ga. 197 and Ga. 255, Clarkesville. 770-534-7075 or unnoldl@charter.net.

Lunch and Learn Gardening Series, Gainesville. "Healthy Houseplants" led by Pat DeNote. Noon April 15, Spout Springs Library, 6488 Spout springs Road, Flowery Branch; and noon April 22, Hall County Library main branch, 127 Main St., Gainesville. Free. 770-532-3311 ext. 114.

Georgia Perennial Plant Association monthly meetings, Atlanta. 7:30 p.m. April 21: Exciting New Perennials and Companion Plants; 7:30 p.m. May 19: A Pleasure Garden in Water and Stone. Atlanta History Center, 130 W. Paces Ferry road, Atlanta. Free. 404-876-0813. 

Lunch and Learn Gardening Series, Gainesville. "Container Gardening" led by Mary Richards. Noon April 29, Spout Springs Library, 6488 Spout springs Road, Flowery Branch Free. 770-532-3311 ext. 114.

Learn the Birds, Helen. Identify birds by sight and sound. 7-8 p.m. May 1 and 2, Unicoi State Park and Lodge, 1788 Ga. 356, Helen. $3 parking, preregistration required. 800-573-9659 ext. 305.

Dirty Spokes Mountain Bike Race, winder. 6- and 12-hour races along mountain bike trail. Spectators encouraged. $3 parking, fee to compete. Fort Yargo State Park, 210 S. Broad St., Winder. 770-867-3489.

Southern Appalachian wildflowers, Helen. 13th annual celebration featuring lecture and hike wiith acclaimed naturalist and photographer Debra Davis. Unicoi State Park and Lodge, 1788 Ga. 356, Helen. Preregistration required, $3 parking. 706-878-3087.

Full Moon Canoe Outing, Tallulah Falls. 7:30-9:30 p.m. May 8, Tallulah Gorge State Park, 338 Jane Hurt Yarn Drive, Tallulah Falls. Preregistration required, $4 parking. 706-754-7981.

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.

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.