George, Hannah, Anya, Hanna, Nikki, Neel and Omar are doing The Tube Challenge! We're all aiming to raise £1000 for the Teenage Cancer Trust and Haven House Hospice. For the challenge, we're going to try and visit every station in Zones 1-4 (that's over 200 stations!) on the London Underground Network in a day. Sounds easy? It ain't.

Just to clarify: our aim is to raise money, we're not trying to beat a certain time or go for a record