Getting there
Martigny station is the real hub here, on the Simplon line between Lausanne and Brig. Three routes leave from it: the Mont-Blanc Express towards Vernayaz, Les Marécottes and Le Châtelard, the St-Bernard Express towards Orsières and Le Châble, and postal buses out into the valley. Ovronnaz is reached by bus from Leytron. By car, the A9 exits at Martigny, Saxon and Riddes cover the rest.
Good to know: the Mont-Blanc Express climbs steeply and runs through forest above a sheer drop. Sit the children on the valley side, the ride alone justifies the outing.