Margalla Trail Runners is presenting the first time Trail Running Race Series on different trails of Margalla Hills. The race series consists of 3 races; Short, Medium, and Long-distance races. The basic objective of the Race Series is to understand navigation skills. Participants have to select any route for the uphill and downhill runs. The start and finish points are the same. Just participants must have to reach the defined spot where the race marshal will note down the bib numbers of the race participants. Winter Trail Running Race Series is a project by Margalla Trail Runners.