Found in: Parks all over the UK (140 and counting). Brought to you by lululemonuk. What we love: in a city full of concrete, there’s nothing like spending an hour of your day running around in the dirt to get you grounded. British_Military_Fitness is a gruelling circuit-based workout that challenges your body and mind. The classes are led by former and serving members of the military and are based off of training you’d find at any British Army, Navy or RAF training camp. But don't be scared, their primary goal is fun. Expect to be encouraged by instructors and members alike (and even the occasional dog). Highly trained instructors and infectious enthusiasm guarantees you an effective workout and improved fitness, as well as a good laugh. The community doesn’t stop when the class is over. BMF is notorious for pub quizzes, team adventures and even marriage proposals. Be prepared to sweat, laugh and then finish it off with a cheeky pint. Our Covent Garden ambassador (and former park m...