English description of the Cares Trail in the Picos De Europa. The walk can be done one way and either way - south to north or vice versa but many people opt for the return trek of approximately 15 miles. Here we look at a one way south to north walk although it is interspersed with a few photos and clips taken on the return leg. This is a spectacular walk and not too difficult for UK walkers used to mountains in England and Wales. Munro baggers will find it is a doddle with views way beyond what your effort has earned.