| Martha Lake to Sesimbra | 5,199.93 mi (8,368.48 km) |
| Martha Lake to Setubal | 5,202.78 mi (8,373.06 km) |
| Martha Lake to Sever do Vouga | 5,103.09 mi (8,212.63 km) |
| Martha Lake to Silves | 5,289.92 mi (8,513.30 km) |
| Martha Lake to Sines | 5,234.11 mi (8,423.49 km) |
| Martha Lake to Sintra | 5,171.08 mi (8,322.05 km) |
| Martha Lake to Sobrado de Paiva | 5,090.48 mi (8,192.34 km) |
| Martha Lake to Sobral de Monte Agraco | 5,167.60 mi (8,316.45 km) |
| Martha Lake to Soure | 5,130.45 mi (8,256.65 km) |
| Martha Lake to Tabua | 5,134.24 mi (8,262.77 km) |
| Martha Lake to Tavira | 5,321.01 mi (8,563.34 km) |
| Martha Lake to Tomar | 5,161.72 mi (8,306.99 km) |
| Martha Lake to Tondela | 5,124.10 mi (8,246.44 km) |
| Martha Lake to Torre de Moncorvo | 5,119.08 mi (8,238.37 km) |
| Martha Lake to Torres Novas | 5,164.87 mi (8,312.06 km) |
