Originating in LA, Barry’s is an indoor boutique bootcamp that’ll shock your system with a combo of strength and cardio workouts, set to pumping nightclub tunes in their famous red-lit rooms. The exercises and intervals are varied to keep you working hard – you can burn over 1000 calories in a hour at some of the classes here. The trainers are industry famous and specialise in maximising potential, so you’ll defo work up a sweat.