...it just HAS to be GYMNASTICS. Strength, flexibility, balance, endurance, explosive power... you'll develop them all... ...and not every training 'go' on the pommel ends well...    

Well, it is still great weather in Europe generally  - far warmer that it ought to be and plenty of sunny intervals albeit with occasional rain showers. Let's add some fit guys to that mix, celebrate the results of their exercise programmes and then be inspired by them... Be sure to run and jump...  And, even if it  does  rain...