Confusingly, Petit-Menéc is in fact at the opposite, eastern end of the alignments to le Menéc village at the western end. You need to turn left onto the D186 main road after continuing from Kerlescan. After about 250m turn right into a minor road going past a forest, there is a clearing where you can park after about 400m. The menhirs are in the forest on your right, arranged in a gentle curve. You don't get the same clear overview of the alignments since the view is obscured by the trees, but there is a unique magic to the stones lurking in the forest...