Latitudes and Longitudes
| Seaport Name | Seaport Code | Country | Latitude | Longitude |
|---|---|---|---|---|
| Finnart | GBFNT | United Kingdom | 56°07'N | 4°50'W |
| Cardiff | GBCDF | United Kingdom | 51°29'N | 3°10'W |
| Southampton | GBSOU | United Kingdom | 50°54'N | 1°24'W |
| King`S Lynn | GBKLN | United Kingdom | 52°45'N | 0°23'E |
| Thurso | GBTHU | United Kingdom | 58°36'N | 3°31'W |
| Faslane | GBFAS | United Kingdom | 56°04'N | 4°49'W |
| Birkenhead | GBBRK | United Kingdom | 53°24'N | 3°01'W |
| Silvertown | GBSVT | United Kingdom | 51°30'N | 0°03'W |
| Killingholme | GBKGH | United Kingdom | 53°39'N | 0°13'W |
| Tarbert | GBTAB | United Kingdom | 52°35'N | 9°21'W |
| Dundee | GBDUN | United Kingdom | 56°28'N | 2°57'W |
| Bideford | GBBID | United Kingdom | 51°00'N | 4°12'W |
| Sullom Voe | GBSUL | United Kingdom | 60°27'N | 1°20'W |
| Cromarty | GBCRY | United Kingdom | 57°42'N | 4°03'W |
| Barton (Mersey) | GBBNM | United Kingdom | 53°28'N | 2°22'W |
| Shoreham | GBSHO | United Kingdom | 50°50'N | 0°15'W |
| Jarrow | GBJAR | United Kingdom | 54°58'N | 1°28'W |
| Stranraer | GBSTR | United Kingdom | 54°55'N | 5°02'W |
| Cockenzie | GBCOK | United Kingdom | 55°58'N | 2°58'W |
| Barton (Humber) | GBBNH | United Kingdom | 53°42'N | 0°26'W |