So where to begin? It depends on your interests and goals. Perhaps you want to slim down? Bulk up? Or maybe you simply crave a space in which to find Zen and boost your mental wellbeing? Whatever your objectives, the good news is the capital has something for everyone and here at GQ, in a quest to help lighten the options overload, we bring you the pick of pack, from the hottest HIIT heroes to the heart rate-soaring rides and everything in between. So, gym clothes in hand and healthy food sussed for after, what are you waiting for?