Three quarters of the Earth is covered in water, with many parts of our seas and oceans completely unexplored. Previously thought extinct species, such as the Coelacanth, have been discovered as recently as 1938 and as exploratory technology advances, we can only expect to find more unknown, or previously thought of as extinct species.

The point I am trying to make is the seas and oceans represent vast water covered areas that are largely unexplored. We simply do not know what populates the deepest areas.

There have been a number of videos posted online about strange underwater domes near Catalina Island, off the coast of California, and it was whilst looking at a Google map of the area I spotted two strange circles just south of Long Beach on the mainland.

When you zoom in to these two areas, whatever lies beneath appears to have been blurred out. We can only speculate why someone would take the time to prevent us from seeing beneath.

Zooming out and to the west, the underwater terrain shown on the Google map system gets even stranger.

Take a look at all the straight lines shown. What could be causing those? Zoom out a little further, and you will see this is confined to a large patch of the Pacific Ocean, west of the California coastline and down to Mexico.

If you have any idea, please leave a comment.