See the BBC's article 'The ski challenge open to everyone' featuring world-famous British architect, Lord Norman Foster, and find out why he's now competed in the Engadin Skimarathon 16 times.
This Swiss race, part of the Worldloppet series, regularly attracts 12,000 competitors. If you want a new challenge, it's a good race to start with and is easy to get to by air/train from the UK. It will take place in 2010 on 14th March so start planning now.