The Morton Arboretum’s summer Walking Plays will feature “The Mama and the Papa Goose: A Rock 'n' Roll Fairytale.” During this family-friendly “mockumentary,” the audience will follow the life and times of the most famous rock band in Fableland music history, The Mama and the Papa Goose. Their biggest fan, the Pied Piper podcaster, will narrate and lead the way through a groovy sing-a-long escapade. Walking Plays are performed by professional local actors, run approximately 90 minutes and will not exceed two miles in walking distance. “Anne of Green Gables” Walking Plays will begin Sept. 23. For tickets and more information, visit mortonarb.org.