San Jose, the oldest city in California has some hidden gems, and you need to find them. Grab your friends and head over to the Plaza de Cesar Chavez for a downtown treasure hunt. You'll solve puzzles that lead to historic sites. At each one, write the answer to the puzzle. When you're finished, turn in your packet to the person waiting on the patio of Sonoma Chicken Coop. Prizes will be awarded based on time and number of correct answers at the celebration event. The Coop will donate 15% of the price of the meals for people attending the party, and give them a BOGO coupon too.