On Friday 17th September - the eve of Open House Weekend - the 20 mile round trip steps off from Guildhall, hikes round Victoria and Kensington then out to the award winning flagship Maggie's Centre at Hammersmith, and back via Marylebone and Horseguards. Channel 4, the Royal Geographical Society, Royal Society of Medicine, RIBA and Horseguards will be open for nocturnal inspection along the way and if you finish early enough in the morning you could still be first in line for the Lloyds Building, complimentary bacon roll in hand, if you've had enough energy drink to keep you going.
The hike raises money for Maggie's Cancer Caring Centres. Over 2000 people took part last year raising £689,000. Want to hike it with Team Londonist and help smash that this year? Email firstname.lastname@example.org if you're game.
Find out more at Maggie's website. NB there is a 10 mile version of the London hike and a simultaneous hike in Glasgow.