No special access issues
It's recommendable to park at the parking in Le Vaudoué, and walk in from there. It's slightly closer this way.
From there take the path Chemin de la Mee for a few hundred meters. From there you can take an recorded path taking you via Troubadoures or walk first to diplodocus and from there a bit back to the area.
But if you happen to want to go to Cul de Chien as well on the same day, you could also park at the main parking of Sabots.