People,
Take a look at photo Number Three.
https://in.musafir.com/Blog/6-submerged-cities-around-the-world.aspx
I had never seen an encompassing photo from that angle. Now I know what it is, exactly what it is. It is a Mayan temple! The architecture is just like thier pyramids. That is the exact façade that they have. It looks like a replica of one of those pyramid temples of Kukulkan.
Compare it with this one, 50 seconds long: https://www.youtube.com/watch?v=oy0990wnpc8
This reinforces the idea that the South Indian/Guatemalan-Mayan culture did stretch across the area of the Pacific and that, in fact, where there was land mass, there is now water.
Dean