Big Ben (M25 Section 2)

Big Ben is the second section of the outer loop of London OHM. It's a mix of flowy and slightly technical sections through tight and open woodland. The technical sections are just spots with medium-sized roots and rocks, plus a few shallow water crossings with mud. There are a handful of hill climbs throughout, with one that has a tighter right turn at the top. Overall, expect the obstacles on this trail to be more fatiguing than technical.