Only just seen this thread - I 'ran' Hadrian's Wall in May 07 (minus the last 12 miles) with several others. We were rasing funds for the local primary school and as we live within a mile of the wall we decided to use it as a fundraising challenge. We invited others to join the three of us who were there from start to finish and split the route into 5 to 7 mile sections so others could join us for parts of it. We set off from Bowness on Solway at 0500 and arrived at the Primary School in Wylam (70 miles later) at about 8pm. We didn't fancy the last chunk into Newcastle and as we had reached our homes, we stopped! The most scenic section was just before Housesteads but perhaps the most enjoyable was around 20 of us doing the penultimate and last leg into the village. We have jokingly called this our 'flat Bob Graham' since and at 15 hours, we felt quite chuffed. We had road support who met up with us at the start of all the sections and so we ate and drank loads. Route finding was simple! We thought we might have seen Joss Naylor half way at Steel Rigg - someone looking remarkably like him was running on the same route. If you (or anyone else) is stil thinking of doing it then I can give a bit of advice about places to stay, but there were 50,000 walkers who have done it in the last year and there are plenty of pubs / B and Bs etc.
We did it in May and are definitely only mid pack runners at best (well I am - he is a bit better than that). Of the three of us that did the whole distance, Phil James and I have done some OMMS and LAMMS ( and a 100 miles in 24 hours years ago) but John Green had never done any sort of long distance challenge. It's a good route - undulating rather than hilly.
