Uh, I'm really sorry, as I hate to blow your lore boat out of the water, but...

Quote Originally Posted by version 1.0 npc Mytseyn
"That the city of Limsa Lominsa was built from the wreckage of the mighty Galadion, which ran aground on the rocks of this very bay some seven hundred years past. This tower we stand in now - the Mizzenmast - is called such because it was built by hollowing out the Galadion's actual mizzenmast. That should give ye a good idea of jus' how massive the original ship was."
So yeah, Limsa was built from an ancient, massive shipwreck - it's not a Primal sleeping I'm sorry to say.