Fiesta Castle Hills is one of the fan favorite Fiesta events! Following a parade, the Fair at the Commons is a family friendly event with live music and food available for purchase. The purple on the medal honors Fiesta Castle Hills designated charity for this year, Alzheimer's Association San Antonio and South Texas Chapter, located right in Castle Hills! If you look closely at the medal, you'll also see one of the reasons folks LOVE the city—the wonderful wildlife that can be spotted throughout!