• Parent/Tot Drop-In - Gymnastics for kids up to 5 years, 12:30 to 1:30 p.m. Monday through Friday, $5.50 per person, Goodson Recreation Center, 6315 S. University Blvd., Centennial, 303-483-7085

• Eighth Annual Rocky Mountain Balloon Festival - Friday through Sunday, Chatfield State Park, Littleton. Free. rockymountainballoonfestival.com.

• Third Annual Race Against Extinction - race Saturday designed to educate about plight of endangered animals. 303-376-4800

• Batty Colorado - Learn about bats. 2 p.m. to 3 p.m. Saturday, Southglenn Library, 7500 S. University Blvd. No. 101, Centennial, registration required, 303-221-3998

• Doggie Tales - Children read to a service dog. 2 to 4 p.m. Saturday, Glendale Library, 999 S. Clermont St., registration required, 303-691-0331

• Raptors! - Meet real raptors and learn. 2 p.m.-3 p.m. Saturday, Sheridan Library, 3201 W. Oxford, Sheridan, 303-789-5422

• School Supply Drive - Help Exempla St. Joseph Hospital outfit students by donating school supplies; collection barrels in Russell Pavilion, Main and Mullen lobbies, 1835 Franklin St., 303-837-6575

• Become a Naturalist - Nature-skills for ages 16 and up. Thursday, South Platte Park, 3000 W. Carson Drive, Littleton, $105, sspr.org

• Friday Night Campfire - Family event. 8:30 p.m. to 10 p.m. Friday, South Platte Park, 3000 W. Carson Drive, Littleton, $9 adult, $7 youth, $25 family, 303-730-1022

Send items to Family Calendar, Karen Ziegler, Rocky Mountain News, 101 W. Colfax Ave., Suite 500, Denver, CO 80202; or e-mail Spotlight@RockyMountainNews.com.