They are serious about fitness at this place. With in-house medical teams and dozens of personal trainers, the Third Space has something for all levels of fitness from the serious athlete to the slightly flabby.

Climbing, boxing, kung fu, yoga, pilates, spinning... it's all here. They even have a Hypoxic Chamber for training yourself to withstand high altitudes. (Or for double-hard bastards who like to pretend they're running at the top of K2.) There's a pool, weight room, a sauna and a flotation tank for ultimate inner peace. The only thing you can't do at the Third Space is play squash, tennis, or football. Boo!

Yes, this is a serious 'body is a temple' gym, although you can just have an energising smoothie and read the magazines if you like. Membership is discounted through corporate and loyalty schemes but the basic rate is £118 per month with a two month discount for annual memberships (£1180).