The Union Street Festival is a free event that takes place in San Francisco's Cow Hollow neighborhood. This festival features over 100 vendors selling everything from handmade crafts to delicious food. Budget-conscious travelers will love the fact that this festival is completely free and offers a variety of affordable food options. The festival is family-friendly and offers a variety of activities for all ages. Don't miss the chance to experience the best of San Francisco's street fairs at the Union Street Festival!