Personal Trainer in Dulwich, South London covering Brixton, Brockley, East Dulwich. West Dulwich, Forest Hill, Brockwell Park, Camberwell & Peckham At GA Fitness Training, your goals come first, as a professional personal trainer in South London, Dulwich & near-by areas, I can help you achieve your health objectives in the most simple and effective way possible. I’m Gabriel Ancu, a certified personal fitness trainer in Dulwich helping clients get fit in my local area of South East London.