Great trip the guide shirly was superb. She gave good information and spoke verry good english( and german,french,++). After we went in to the startingpointe, you can deside if you want to walk alone at your owne pace, or walk together with the guide. I walked with the guide and would recomend it. She had lots of information and humor. A bit before the end i walked by my self and then had time to grab a hotdog to eat at the stands at the finish.