Come celebrate at the Halloween Harvest Festival at the Shadelands Diablo Valley Farmers' Market. The Kids' Costume Contest will start at 10:30am with prizes for Scariest, Funniest, Best Farmers' Market Theme, Most Creative, and Best Overall Costume. Pick a pumpkin from the patch, decorate your own mini-pumpkin, guess the weight of the GIANT pumpkin and win $50! Play the Pumpkin Pitch Game. Fun for the whole family!