That's good to know as I have it in my route-plan. I see that they have areas at the locks like Gairlochy and Moy where they tolerate camping.

Hi Fred
I went that way in 2015 on my first Challenge and had checked with the caravan/campsite about access about which they had no problem but they also flagged up Stormin’’s point about how wet it was in parts. When I walked the route I actually stayed on the road for a further km past the site as it had been a wet morning and accessed the track at NN198830 which was a bit tussocky but OK and lead to a wonderful graded path shown on the 1:25000 map passing the historic High Bridge and on to Spean Bridge.
Good luck with your planning and maybe our paths will cross in May.

Thanks everyone, decisions decisions !