Andy's Paris Metro Challenge

So here's the idea: 14 Paris Metro Lines. 14 Days. 303 Stations (several multiple times). Above the Ground. On foot. Approx 230km. To my knowledge nobody else has done this before, so I'm hoping it will also be a world first. The money will go to the Mi Sangre Foundation to recognise the inspiration Colombian rock singer Juanes has given me since first being introduced to his music and charitable work at the beginning of my Spanish studies.