Ski Marathon!

Tienna2925

So, I've just decided to do the Engedin ski marathon next March. My dad did it last year, and said it was really fun and is doing it again, so I thought it would give me real motivation to get on and get fit. Only snag is, I've never done any cross-country skiing, or have any base fitness at all really.

My question goes out to any who have done this before, and those who have an idea of what it takes. How much training will I need to do to realistically complete the marathon within a reasonable time?