In reply to LastBoyScout:
I haven't done the journey since before the pandemic, but the train journey between Glasgow and Fort William was always a pleasure - especially when travelling north. Lots to see: Glasgow slowly turning into countryside, the Clyde, the gathering mountains, Rannoch and views of parts of the WHW. For some reason I always enjoyed the break at Crianlarich where they divide the train so that half of it can go to Oban - not something that happens much on journeys further south.
The WHW can be a fun social walk, if thats what you want. Enjoy.
Post edited at 14:33