The Turquoise Trail Guided Downtown Tour, by the Presidio Museum

Tucson’s Historic Downtown Walking Tour A 2 ½-mile loop through downtown that showcases Tucson’s Spanish Colonial architecture and historic landmarks. The Turquoise Trail Walking Tour begins at the Presidio Museum, located at 196 N. Court Avenue and is marked by a distinctive turquoise line painted on the sidewalk, making it easy to follow. Trail Options: 1) A self-guided tour brochure is available at the Historic Pima County Court House Visitor Center or at the Presidio Museum for $2. 2) A GPS-led app called "Turquoise Trail" is available at Google Play or the App Store for $5. The complete walk takes 90 minutes to two hours, but it can also be done in segments. The Trail is fully wheelchair/scooter accessible. More than 30 restaurants are within a few blocks of the walk, providing opportunities for lunch along the way.