Have done a marathon and a good few half marathons, but first competitive off road run in 5 hours, over the wonderful Old Kenmare Road for 13 miles through Killarney National Park. Looking forward to it. More trail than fell, couple of miles of tar, but fantastic setting...
http://www.outdoorsireland.com/blog/...-kenmare-road/
Initial climb from sea level to about 330m should make the first 25 minutes interesting, after that it's a case of enjoying the scenery, just one other tough climb of a mile or so. Fingers crossed. We might even meet the local cyclists attempting it in wrong gear (contains lots of swearing in strong Kerry accents)
http://www.youtube.com/watch?v=D_YzlHxCDyE