Enjoy a spring day at Buena Vista, built by former U.S. Secretary of State John M. Clayton in 1847. Take nature walks, learn about the gardens and agricultural history of the farm, enjoy educational programs by the Sunshine Plein Air Artists and Bluebird Society, and participate in outdoor children’s games. Photography and picnicking are welcome. Rain date: Sunday, May 15. Free but reservations required for tours by calling 302-323-4430.