GR 20 Corsica Stage 5 – 6 Published August 5, 2018 at 1312 × 1969 in GR 20 Etape 5: Ballone to Castel del Vergio [why this is better than Tighettu to Ciottulu] ← Previous Next → Quickly filtering water on Stage 5 of the GR 20, Corsica, France