ArtWalk, the Tri-Valley’s premiere one day art festival. Over 200 artists display their works surrounded by boutique shops, wine tasting rooms and restaurants in historic downtown Livermore. Live music and artists will be at all the parks downtown. The Bankhead Plaza will have cultural arts groups performing between 12 and 4 pm. An LVPAC free event. lvpac.org, 925-373-6800.