Movie in the Park featuring "Back to the Future." Dusk at the Riverside Park Pavilion area. Free; popcorn provided.

Cookies and Coloring at Caribou Public Library, 4:30-5:30 p.m. Coloring pages/books, colored pencils, pens and cookies provided. Ages 12 and up; first and third Fridays.

Cribbage tournament, 10 a.m. at Putnam House Senior Center, 48 Court St.

Elementary Mammal Tracks program, 3-4:30 p.m. at Caribou Public Library. Fun introduction to animal tracks, behavior and habitats for ages 6-13. Free.