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I've spent a few hours trawling the net looking for something suitable, but I suspect you guys might be able to point me in the right direction. In May 2013 I'm going to be running from north to south Wales in 7 days, effectively running 25+ offroad miles a day along the hilly route of Offa's Dyke.
Anyway, myself and my co-conspirators need a training plan. We've all done marathons and triathlons before, but this is obviously a step or three up the endurance ladder.
Any advice on training plans, or where we might be able to get something relevant, will be gratefully received.