From the South, heading along the A82, as you come into Fort Augutus the Abby is at the bottom of the hill, before the canal, the A82 wants you to keep going left, BUT NO, turn right, 90 deg, then keep going left, then Straviag to Inverness.. (I don’t do GPS, can you tell !)
If you find you have gone too far, past the canal, and are out of Fort Augustus, turn around and try again, it’s the Scottish Highlands, we usually have one road in and one road out, we keep the wee roads tae oor selves.
Take your time, enjoy.
G C