Rocks stumbled down the pathway, making it unsafe. Not surprising when you consider that over its 3.2 km (2 miles), this section of the footpath makes a 500 meters drop/jump in elevation. Walking up and/or down the winding track was a challenge, but the views of the surrounding white and rusty limestone cliffs and the deep valley below made it worthwhile.
The path to heaven will reopen. To find out when, consult with the Bar-sur-Loup Tourism Board: http://www.lebarsurloup.fr/