Team GB star Louis Smith launched this six-week series of free inner city boot camp workouts last week – parkour, upper and core body exercises and aerobic training across the 4.2km route – that get you into shape while taking in the city sights. In association with the new Samsung Galaxy S4 mobile. 

Free, Tue & Thur til July 4, 6.30pm-7.30pm  
Tower Bridge, SE1 2UP 
Tube | London Bridge

Photo: Getty