A holiday festival features more than 100 artisans in a wide range of media, live music on the main stage, food vendors and family arts activities begins with a tree-lighting at 10 a.m., Saturday, Dec. 7, and continues through Sunday, Dec. 8. The event also features more than two dozen designer-decorated Christmas trees for sale to benefit Gap Ministry's Holiday of Hope. Hours are 10 a.m. to 5 p.m., Saturday; and 11 a.m. to 4 p.m., Sunday; free. Visit orovalleyfestival.org for more information.