| Hard to Calafell | 590.81 mi (950.81 km) |
| Hard to Calahorra | 672.78 mi (1,082.73 km) |
| Hard to Calasparra | 859.59 mi (1,383.37 km) |
| Hard to Calatayud | 700.37 mi (1,127.13 km) |
| Hard to Caldas de Montbuy | 548.01 mi (881.93 km) |
| Hard to Caldas de Reyes | 953.50 mi (1,534.51 km) |
| Hard to Calella | 532.73 mi (857.35 km) |
| Hard to Callosa de Segura | 838.60 mi (1,349.59 km) |
| Hard to Calpe | 780.07 mi (1,255.39 km) |
| Hard to Calvia | 654.53 mi (1,053.36 km) |
| Hard to Camas | 1,058.64 mi (1,703.71 km) |
| Hard to Cambados | 964.06 mi (1,551.51 km) |
| Hard to Cambre | 919.10 mi (1,479.15 km) |
| Hard to Cambrils | 615.14 mi (989.97 km) |
| Hard to Campo de Criptana | 849.57 mi (1,367.25 km) |
