You can extend the walk beyond the village of Le Pas de l'Echelle by taking the cross-border path to Sierne (guidebook available in local libraries). Along the way are information panels on the biological corridors created by local schoolchildren. Sights include the lakes and marshes of the islands in the River Arve, bourgeois residences in Sierne and Veyrier and the castle and chapel in Etrembières.