Point Nemo (and related points) is also interesting:
> […] The oceanic pole of inaccessibility, also known as Point Nemo, is located at roughly 48°52.6′S 123°23.6′W[21] and is the place in the ocean that is farthest from land. It represents the solution to the "longest swim" problem.[22] […]
> […] The oceanic pole of inaccessibility, also known as Point Nemo, is located at roughly 48°52.6′S 123°23.6′W[21] and is the place in the ocean that is farthest from land. It represents the solution to the "longest swim" problem.[22] […]
* https://en.wikipedia.org/wiki/Pole_of_inaccessibility