Heritage Daily has an article with more details, undersea mapping, photos, and cites the source (the International Journal of Nautical Archeaology).
https://www.heritagedaily.com/2025/12/network-of-submerged-s...
It is not a wall, but rather a “network of submerged stone structures”.
We assume anything older than that has to be hunter gatherers. Personally I'm skeptical and think this is more evidence that points at much more advanced and older civilizations than what archeology seems willing to entertain right now.
However, until last week, we thought that the earliest point of humans _deliberately creating_ fire – e.g. through flint and tinder – was 50,000 years ago.
A new find has dated the first instance of deliberate fire to be 400,000 years ago (probably by early Neanderthals).
So I agree - the archaeological evidence and our interpretation of history is spotty at best.
https://www.theguardian.com/science/2025/dec/10/man-made-fir...