Is it the Action Challenge event? If so it is really well supported, but some of it is very off-road - clambering over thick tree roots, and picking your way down very steep wooded, difficult terrain ... its a fantastic event, excellent signposting - with lots of glow sticks at night time ... I guess recovery would depend how hard you tried - if you walked a lot, which is fine, since its predominantly a walking event ... I guess recovery would be a lot quicker, but get a really good head lamp for the night time bit!
I've just had a letter to say my op has been cancelled - for the second time. This is the second time its happened, it was supposed to be in August originally, but apparently the surgeon got study leave so it was postponed until Oct 5th. This letter gave no reason, and no new date either