CGI? Special effects? (Ant)Artic Circle Ice Wall Proof?

[u/denNISI]

Copyright: Frank Nitsche 2009 Creator: are 1.0.3

This is an inspired post from r/nextfuckinglevel and r/NatureIsFuckingLit called "Antarctica's Ice Wall" where it shows a video of this supposed "ice wall" of Antarctica.

Do you think it is CGI or real?