>>5982837There are definitely lost continents, but we know where they are now that we know the whole underwater topology of earth.
All of the area around New Zealand was an ice-age continent.
The islands below japan used to be above water too and were bigger than India
What is now the United Kingdom used to be a vast open plain with no water at all between it, france, norway and even extended far north of the British Isles.
India was also a lot bigger, but mythological continents like Lemuria and Mu below India and in the pacific, respectively, definitely don't exist. We can see the shape of earth without water now thanks to satellites and those areas are just too deep to ever have had more than islands moderately larger than the current ones there.
But ice-age earth DEFINITELY had some crazy fucking atlantis-tier civilizations on the various coasts of the many now submerged areas.
There's a reason every single culture on earth has their own flood-myth and tales of lost cities.