Seaports
| Seaport Name | Seaport Code | Country |
|---|---|---|
| Santa Fe | ARSFN | Argentina |
| San Sebastian Bay | ARSSN | Argentina |
| San Pedro | ARSPD | Argentina |
| Sydney (Aus) | AUSYD | Australia |
| South West Rocks | AUSWR | Australia |
| Sao Sebastiao | BRSSO | Brazil |
| Sao Luiz De Maranh | BRITQ | Brazil |
| Sao Luiz | BRITQ | Brazil |
| Santos | BRSSZ | Brazil |
| Salvador (Bahia) | BRSSA | Brazil |
| Sorrel | CASOR | Canada |
| Seven Islands | CASEI | Canada |
| Sarnia | CASNI | Canada |
| Sydney (Can) | CASYD | Canada |
| Shelburne | CASBU | Canada |
| St. John`S (Can) | CASJF | Canada |
| St. Andrews | CASAD | Canada |
| Saint John | CASJB | Canada |
| Stewart | CASTW | Canada |
| Skidegate | CASKI | Canada |