Well I did it today - finally stopped putting it off and went out and did it ! Thanks for all the encouragement and the virtual kick up the bum last week , it did the trick. The canal towpath reopened today after being resurfaced and was wonderful, the sun shone and me and my running partner were up for it. After a morning worrying about it, we set off at lunch time and amazingly we soon set a pace (be it a slow one) and I wouldn't call it easy but I really enjoyed it and felt such a sense of achievement. It was finished by a big hug and elation, it's probably the furthest either of us have ever run in our lives. Bring on week 6 !