1-3 p.m. – Ranger Larisa and volunteer Penny lead kids, complete with musical instruments, costumes and props, through the Cherokee legend “Why the Opossum’s Tail is Bare.” After the story, Ranger Larisa takes participants on a one-hour walk along the river trail to a natural rock shelter. Bring comfortable outdoor clothes and sturdy shoes for the walk. $3 daily pass fee, $25 annual park pass needed. Reservations required; space is limited. Call 678-538-1200 to sign up. Chattahoochee River National Recreation Area, Hewlett Lodge, 1978 Island Ford Parkway, Sandy Springs, 30350. Go to: www.nps.gov/chat for details.