Andy, Matt, Cesar, Charles and Pippa, in a moment of madness, have agreed to abseil 262ft from the ArcelorMittal Orbit to raise funds for the Citi London charity Guide Dogs. 

Citi are aiming to raise £350,000 to enable Guide Dogs to create 178 life-changing partnerships. With our support, Guide Dogs will match people with sight loss on the London waiting list to guide dogs or volunteer sighted guides.
About Our London Charity Partner Guide Dogs.
Losing your sight shouldn't also mean losing your independence, confidence and freedom, but unfortunately, our world is a tough place when you cant see. In the UK, there are 360,000 people who are blind or partially sighted and half of them do not leave their homes alone. Guide Dogs provide life-changing services:- Guide Dogs- Volunteer sighted guides (My Guides)- Support for children and young people- Orientation and mobility specialists- Technology- Support for friends and family.

Anything you can give will go a long way to making someone's life better.