There are plenty of souther tribe water benders. Katara was the only one not captured yet. The southern water tribe also existed well before and after the 100 year war
Here is a higher quality version of this image. This is at Pleneau Bay, Antarctica. Here is the source. Credit to the photographer, Sander Klaassen. He provides the following caption: "Zodiac cruising Pleaneau Bay, also known als the iceberg graveyard because icebergs run aground here." More of his work can be found here.
They will never travel to Antarctica to once and for prove that there is an icewall. Just like they will never travel to space to see that the Earth is a sphere.
Naaah the only possible explanation are alien bird giants from Atlantis. I mean it LOOKS LIKE a thing. So it has to be a thing. That's how science works
So why does this ice wall have such high water line marks? What am I looking at there? Do these water line marks represent a time when the ocean was higher? To me strange , I’m sure a good explanation out there somewhere
Makes you remember just how bad the end of GoT must have been for a post about a literal wall of ice to not have a single comment referencing the wall in that show.
Physics will usually regress to the most efficient design to bear the weight. I'd imagine the proportions of those columns and the archway mimic stuff built in Rome.
This is clearly the work of the southern water tribe