I did the Lyke Wake when I was at school, in June one year. It seemed pretty easy, setting off at about 3.00am and walking into the dawn. It was fun. Then some bright spark suggested we do it in winter, so we tried the following January. My God, I thought it was a different walk. Trying to cross raging torrents that had been lovely title streams in the summer, having to pull your foot out of muddy ground a lot of the way while walking into driving sleet. We quit after about 10 miles. I've still got my one little back coffin shaped badge though.