Not the most difficult Via Ferrata climbing, but in a remote setting with nice views.
Optional second VF route can be used as a descent after climbing up the first VF. It is designed as a separate challenge of a different kind: less strenuous, more thoughtful technique.

First drive to Puy-Saint-Vincent and find the neighborhood "Les Alberts" (N44.8276 E6.4955). Then E + SE a short ways to the neighborhood "Les Pres" (N44.8248 E6.5007). Those averse to driving on narrow curvy roads could park there (but it's a long walk up to the climbing - or bike?).

Next follow signs for Col de la Pousterle. Narrow road, be careful and ready for vehicles coming in the other direction. Asphalt ends around (N44.8123 E6.5118), with Parking available there for those who don't want to try driving up narrow dirt/gravel sometimes steep. Said to be drivable usually with a normal low-clearance passenger vehicle. Just below north from the Col de la Poustere pass is the trailhead Parking (N44.8088 E6.5142).

Hiking approach: More details . . . see the Location section of the Via Ferrata Tournoux route page.

- - > See this approach trail Map.
. . . . . (with down-loadable GPS track).