Cascade du Déroc is a beautiful waterfall south of Nasbinal, near Montgrousset in Languedoc Roussillon/Lozere, France.
From Nasbinals go south to Montgrousset over road D52. In Montgrousset go right proceeding on the D52 until there is a parking after 600 meters. From here there is a trail (600 meters) to Cascade du Déroc.
Best spot to see the waterfall is from aside after a rainy period. It is also possible to walk further to teh base of Cascade du Déroc. Although Cascade du Déroc is only 30 meters high(single drop) it is quit impressive to see after a rainy period.
Cascade du Déroc is fed by rainwater from Lac de Salhiens that rushes down from a basalt cliff. The waterfall lies a small cave whose ceiling is made ??of basalt prisms.