Voted by national geographic as one of the worlds best hikes the fimmvruhls pass from skgar to rsmrk is one of icelands most popular hiking routes the trail takes you from skgar along skg river and its many waterfalls and up between the two glaciers eyjafjallajkull and mrdalsjkull there you will discover the recently formed lava and some of the worlds newest new craters magni and miheading down from the craters to the magnificent rsmrk glacier valley youll continue