It is a great country for walking. In 2012 I walked the Great Glenn Way from Fort Williams to Inverness which is about 79 miles. I also used a shuttle service (Sherpa) and stayed in B&B's. I had walked the Coast to Coast trail in England and found that more interesting for me. It was more remote and used walking paths instead of two track roads. Two problems I had in both Scotland and England is that they have a different schedule than I do. Breakfast is 8:30 and supper is 6:30 and I generally start breakfast at 5:30 and supper at 5:30 PM so I spent a lot of time waiting. The other problem was that the folks talk some language which sounds something like English but is a lot different, so between my poor hearing and the language barrier I had a problem communicating.