| Martha Lake to Cadiz | 5,398.98 mi (8,688.82 km) |
| Martha Lake to Calafell | 5,391.26 mi (8,676.40 km) |
| Martha Lake to Calahorra | 5,223.12 mi (8,405.80 km) |
| Martha Lake to Calasparra | 5,457.76 mi (8,783.41 km) |
| Martha Lake to Calatayud | 5,286.05 mi (8,507.07 km) |
| Martha Lake to Caldas de Montbuy | 5,384.29 mi (8,665.17 km) |
| Martha Lake to Caldas de Reyes | 4,995.08 mi (8,038.80 km) |
| Martha Lake to Calella | 5,399.67 mi (8,689.93 km) |
| Martha Lake to Callosa de Segura | 5,489.92 mi (8,835.17 km) |
| Martha Lake to Calpe | 5,489.53 mi (8,834.55 km) |
| Martha Lake to Calvia | 5,512.29 mi (8,871.18 km) |
| Martha Lake to Camas | 5,360.82 mi (8,627.41 km) |
| Martha Lake to Cambados | 4,995.18 mi (8,038.97 km) |
| Martha Lake to Cambre | 4,969.15 mi (7,997.07 km) |
| Martha Lake to Cambrils | 5,383.56 mi (8,664.00 km) |
