An advanced ancient pre-ice age civilizations of humans lives in the oceans and operates the crafts we see in our skies.

It become more and more evident that we're are not alone on this planet. The crafts we see in our skies and exiting our oceans are controlled and operated by several human and non-human species that have live on this planet prior to the ice age. They lived in the oceans and deep earth caverns to avoid the periodic cataclysms that impact the surface of this planet.