Plan on about 1 to 2 hours to see the small museum, walk the interpretive trail through the presidio ruins, and take in the placards and occasional living history demos. The site focuses on the Spanish colonial and early territorial story and pairs well with a stroll through Tubac’s compact art galleries and cafes nearby. Wear comfortable shoes and sun protection because paths can be uneven and shade is limited, and bring water. Expect a small admission fee, on-site parking and basic visitor facilities, and check current hours or event schedules before you go.