Although the Grand Traverse of the Alps starts on the southern shores of Lake Geneva I have decided to start my walking journey in Chappelle des Bois in the French Jura north of the lake. I will take three days in a gentler environment on a short section of the Grand Traverse of the Jura (GTJ) .
When “weather wise”
I have been seeking advice from a number of publications on when I should tackle the walk
In Frontiers The World’s Greatest Walks from Trail Magazine (2003) they suggest the best time is “end of August until the first two weeks in October”
The Cicerone guide Trekking The GR5 Trail (2016) suggest “mid-July and mid-August” for the best weather conditions although this is also peak period for French holidays so accommodation will be at a premium.
Robertson McCarta Walking the GR5: Lake Geneva to Mont-Blanc (1990) recommend “mid-June to the end of August” but go on to say “September and October too can be very pleasant”
In considering all the advice so far I have decided to depart from Chappelle des Bois on the 11th August 2019. This will allow me to experience the hustle and bustle of the refuges during the latter part of the French holidays before the peace descends upon the Alps for the second half of the walk.