I think I will give it a go as I live in Dover, this would be my first marathon. The course is as flat as the proverbial. At only 3 miles looks like 9 laps required which must be some sort of record in itself.
Last weekend 23rd I did the North Downs 30K run, the furthest I have run. When I finished my knees were very sore, burning, I couldn't move for a while, after elevation of my legs, massage, water and energy bars they gradually felt better and were OK by the evening. The next day I had no soreness at all anywhere. During the race I drank at every water station. Since then I have done an 8 mile training run on rough terrain with no soreness at all. I wear New Balance Minimus barefoot shoes. What's the best way to avoid this happening again, is it as simple as more hydration, minerals, energy bars before the race?