2nd Saturdays Downtown is a free, all-ages urban street fair with fun for the entire family. On the second Saturday of every month d owntown Tucson streets are full of activities, from the Kids’ Area at the So. Arizona Transportation Museum all the way down Congress Street to the Fox Tucson Theatre. Families can walk and enjoy the entertainment, restaurants, and sights starting at 4p.m. and find plenty to do until 10p.m. (March - November hours). Make sure the kids make it to the FREE movie at the Southern Arizona Transportation Museum, 414 N. Toole (near Maynards at 5th Ave). Every second Saturday, the Children's Museum Tucson hosts two local arts groups at the Museum for FREE hands-on fun from 5:30-8 pm. Enjoy our beautiful courtyard, or step inside for some play-based learning. The museum requires entering adults to be accompanied by kids (under 18) and all children must be supervised by an adult.