Women's activewear brand Lorna Jane throws a major workout party this September 28 with Active Nation Day, when gut-busting ladies around the world are invited to break a sweat. Celebrate locally at Santa Monica Place for four hours of fitness, starting with Christine Bullock's 45-minute MOVE class and a session of old school aerobics, followed by a post-workout spread of recharging snacks and juices. Other empowering activities include contributing to Lorna Jane’s “Believe” board and channeling your inner hippie (hipster?) at her DIY flower crown station. All events are free and open to the public.