I can't recommend Gok's fitness hub more highly. I do personal training there and classes. A really supportive environment from other clients and all the trainers. Great fun. I love exercising outside - always under cover if raining! - with the option of inside on the very cold mornings.. I do personal training as I've had injuries with running but now, after strength, I can run as well but have finally been able to lose my "muffin top" with the weight training.. My husband also works out at the hub and has noticed getting back his shape of younger years! Classes are great fun - really varied and encourage you to push yourself while everyone of all strengths and fitness are accommodated and made to feel very welcome. They do 6 and 12 week weight loss plans and HYDROX training. I'm now able to do proper press ups and hopefully will be able to do my first pull up unaided in the New Year! I much prefer it to an inside gym and the trainers - and Gok - are fantastic! If you want a friendly fitness hub, try Gok Fitness just off roundabout in Dulwich Village.