Washington Irving's Sunnyside, 89 West Sunnyside Lane, Tarrytown, N.Y. August 5, 12, 19, 26, 10 a.m. to 5 p.m. Parents and children are invited to take a specially tailored tour of the home of Washington Irving, presented with a child's eye view of the 19th century in a highly engaging, educational program. Enjoy tales of Sunnyside's young residents, an interactive scavenger hunt, hands-on activities, and displays of period toys. A new craft activity is offered each week. Admission: $12; $10 for seniors; $6 for children 5-17. Free for members and children under 5. 914-591-8763.