This week

Bike ride, Gainesville. Chicken City Cyclists. Various loop routes. 8-50 miles, easy to strenuous. No ride in precipitation or if high is predicted to be below 45 degrees. 10 a.m. Saturday, leaves from Dewberry Church, 4616 Clarks Bridge Road, Gainesville. 770-534-7075 or unnoldl@charter.net.

Thanksgiving hike, Helen. Led by Everett Avery, hike Martin Mine Trail, a 1.5 mile hike that features a waterfall, vertical mine shaft and ephemeral pond. 10 a.m. to noon Saturday, Smithgall Woods-Dukes Creek Conservation Area, 61 Tsalaki Trail, Helen. $5. Preregistration required. 706-878-3087.

Upcoming

Bike ride, Gainesville. Chicken City Cyclists. 8-50 miles, easy to strenuous. No ride in precipitation or if high is predicted to be below 45 degrees. 10 a.m. Dec. 4, Dewberry Church, 4616 Clarks Bridge Road, Gainesville. 770-534-7075 or unnoldl@charter.net.

Forsyth Senior Softball Association, Cumming. Needs men age 50 and older to participate in the ASA Softball League. Organizational meeting, 10 a.m. to noon Dec. 4, Central Park Recreation Center, 2985 Chardonnay Lane, Cumming. 770-844-7178 or fssa2011@hotmail.com.

Bike ride, Gainesville. Chicken City Cyclists. Loop routes, easy to strenuous, 8-50 miles. No ride in precipitation or if high is predicted to be below 45 degrees. 10 a.m. Dec. 11, Dewberry Church, 4616 Clarks Bridge Road, Gainesville. 770-534-7075 or unnoldl@charter.net.

Stars Over Elachee, Gainesville. Learn how a telescope works, how to set one up and use one of eight 6-inch Dobsonian telescopes to view the moon, planets, stars and constellations. 5 p.m. Dec. 11, Elachee Nature Science Center, 2125 Elachee Drive, Gainesville. Reservations required; recommended for ages 8 and older. $10 adults, $5 age 11 and younger, free for Elachee members. 770-535-1976.

Reindeer Run 5K, Dawsonville. Benefits Ric Rack Food Bank. 9 a.m. Dec. 11, Food Lion, 59 Main St., Dawsonville. $20 and 3 canned food items for age 14 and older; $15 and 3 canned food items for age 13 and older. lstarr@mindspring.com.

Ongoing

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 steve@hallfarmers.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 fit2tri@gmail.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.

 Observatory & Planetarium Public Education Nights, Dahlonega. Star and planet viewing. Planetarium viewing, 8 p.m.; observatory 9:30 p.m. Friday, Coleman Planetarium, Health and Natural Sciences Building, North Georgia College & State University, 82 College Circle, Dahlonega. Free; seats limited. jjones@northgeorgia.edu. Observatory opens for star and planet viewing.OPPEN continues every Friday night through Nov. 19. Free. jjones@northgeorgia.edu.