Attempts to travel the network have been linked to charities such as Children in Need and Comic Relief . A charity attempt known as " Tube Relief " was organised , following the 7 July 2005 London bombings , to raise money for the London Bombings Relief Charitable Fund . Fifty-one people rode the entire tube network for the day , raising over £ 10,000 towards the official charity fund . A Sue Ryder charity event took place in November 2011 , when ten teams competed against each other to have their photo taken outside as many of the 270 stations as possible . Former record holder Geoff Marshall subsequently organised a mass-participant events in 2014 , 2015 and 2016 , called " Walk The Tube " , raising tens of thousands of pounds in the process
7 July 2005 London bombings
7 July 2005 London bombings
Tube Challenge