Well there is an Orthodox Church there. Catholics won't be able to commune the Holy Mysteries but they can attend the liturgy. And there is a priest in case of a life threatening emergency.
https://en.wikipedia.org/wiki/Trinity_Church_%28Antarctica%29
![http://www.shsu.edu/~chm_tgc/Blogs/Church.in.jpg](http://www.shsu.edu/~chm_tgc/Blogs/Church.in.jpg)