An entire weekend of workshops with world-renown instructors, dance competitions and live music from one of the nation’s premier swing bands. Each year dancers come from all over the world to be part of this event and share their love of this historic American dance-form. www.BalboaBlowout.com for schedule and cost. Castle Events Center, 83 E. 120th Ave., Northglenn-80233. Proceeds support cmDance, which provides swing-era dance classes to low-income public schools throughout Denver Metro.