It has been a plan for years: (trail)running around Llivia and visiting all the bordermarkers on the go. Why: for the fun of it and as a sporty challenge.
Today was the day and the route I was about to follow was my own GRPdesBF-one:
Well, it took me 5:30h to complete the 25km. Many parts were unfit for running: too steep, too rocky or no trail at all. And when I could run, there were regularly interruptions to find the bordermarker, make a picture, to check where to proceed. So the average speed is low but the variation in speed was large. I was quite exhausted when I finished, also quite content. I think no one has ever done this.
The recording by Runkeeper can be seen at this page.