Some guys back in Ireland are challenging me to this...
http://www.toughguy.co.uk/tg-whatis.asp
It runs towards the end of Jan, and my cardio is normally limited to some HIIT on a bike, skipping and a bit of bag work.
I'll be in Poland skiing the first ten days of Jan to...limiting prep time even more.
Before I let my mouth write cheques my body can't cash....is it doable?