Bring your family to the Presidio of San Francisco to learn about the layered history of this special place! Enjoy guided tours of the live archaeology dig site of El Presidio and the Presidio Archaeology Lab. Activities include exploring the Presidio Officers’ Club, learning from archaeologists working in the field, making adobe bricks, and other crafts and family fun both indoors and out. – https://www.presidio.gov/events/international-archaeology-day