| Gujan-Mestras to Castelli Calepio | 538.52 mi (866.66 km) |
| Gujan-Mestras to Castelnovo ne' Monti | 564.46 mi (908.41 km) |
| Gujan-Mestras to Castelnuovo Berardenga | 630.55 mi (1,014.78 km) |
| Gujan-Mestras to Castelnuovo di Porto | 701.93 mi (1,129.64 km) |
| Gujan-Mestras to Castelnuovo di Verona | 579.87 mi (933.21 km) |
| Gujan-Mestras to Castelnuovo Rangone | 589.92 mi (949.39 km) |
| Gujan-Mestras to Castelvetrano | 864.52 mi (1,391.31 km) |
| Gujan-Mestras to Castelvetro di Modena | 591.04 mi (951.19 km) |
| Gujan-Mestras to Castenaso | 616.53 mi (992.21 km) |
| Gujan-Mestras to Castenedolo | 557.17 mi (896.68 km) |
| Gujan-Mestras to Castiglion Fiorentino | 650.95 mi (1,047.60 km) |
| Gujan-Mestras to Castiglione del Lago | 660.45 mi (1,062.89 km) |
| Gujan-Mestras to Castiglione delle Stiviere | 566.89 mi (912.32 km) |
| Gujan-Mestras to Castrolibero | 957.65 mi (1,541.19 km) |
| Gujan-Mestras to Castrovillari | 941.83 mi (1,515.73 km) |
