Wear your lederhosen, or shorts and flip-flops, for the 47th annual Four Peaks Oktoberfest. The celebration includes live entertainment, children’s activities, polka dancing, wiener dog races, beer and wine gardens, and plenty of bratwurst, sauerkraut and strudel. A 5K, 10K and 1-mile fun run also are planned to benefit the Frank Kush Youth Foundation. F, 5 p.m.-midnight; Sa, 10 a.m.-midnight; Su, 10 a.m.-8 p.m. Tempe Beach Park, 80 W. Rio Salado Pkwy., Tempe, tempeoktoberfest.com.