Malpelo Island is a small Island in the pacific, 500km off the coast of Colombia (to which it belongs) located at around 81°36′32″ W.
That's further west than the westernmost point of mainland South America which is at 81°19′35″ W.
I have doubts regarding Honduras and the lack of Nicaragua... I believe Nicaragua must definitely count in this quiz...
aaaaand another little patch put on my blanket of ignorance :)
The westernmost point of Gambia is at roughly 16.812619 W. It just squeaks by the westernmost point of Senegal to the south at roughly 16.791712 W, and then has a clear shot to Antarctica.
Really appreciate the effort put forth on this.
And, as others said, so are Nicaragua, Senegal, the Gambia and Norway.
And can I just say: Holy cow, the Comoros are close. They just miss out by 0.008'.
Honduras should not be on the list as it is blocked by El Salvador and Nicaragua. Instead, Nicaragua should be on the list.
Also, the Gambia, Senegal and the Republic of Congo should be on the list.
Besides, Chile should be put just behind Mexico because of its Hanga Roa Island.
Is the idea behind this that you could take a boat to sea and follow a path to antartica without hitting anything??