The Great Glen Way stretching for 73 miles was opened on 30th April 2002. The Way starts at Fort William, near the foot of Ben Nevis (Britain's highest peak, which can be readily ascended if you choose to spend an extra day), follows the shores of the famous Loch Ness, and finishes at Inverness, Scotland’s north-most city and the “capital of the highlands”. Most of the walking is straightforward, along canal towpaths and forest tracks, but there are some more challenging sections on the last couple of days. 

If you have two weeks, this tour would be interesting to do in combination with The West Highland Way which finishes in Fort William.