Celebrate the legacy of Isabel Merriman—gardener, animal advocate, and sister of Sarah Winchester—with a garden scavenger hunt for all ages. Explore the Museum’s gardens using a clue-filled handout, meet therapy dogs from Palo Alto Humane Society (noon–2 PM), and learn about plant care from garden volunteers. First 50 groups to complete the hunt win a prize! Free admission. More info: losaltoshistory.org/IsabelsHunt