There are a number of kid-friendly (animals and pumpkins) and adult-friendly (vineyards) farm tours coming up.

• Loudoun County, VA Farm Color Tour October 16-17, 2004
• Fauquier County, VA September 18, 2004.
• Frederick Co, MD. We went to this in 2003. Highly recommended, especially the stop at the Schifferstadt.
  Photos Here. October 16-17, 2004
• Visit Northern Virginia has listings of many events also
• The Corn Maze is ready at Cows-N-Corn in Midland, VA.