Cake walks, sack races, ring tosses, face-painting and other children's activities take place from 10 a.m. to noon, Saturday, July 3, at Tubac Presidio State Historic Park (1 Burruel St.). Fireworks take place at 8:45 p.m., Saturday, July 3, at Tubac Golf Resort and Spa (1 Avenida de Otero). $7 per car. Bring a blanket and chair. Coolers will not be allowed. Call 398-2704, or visit www.tubacaz.com for more information.