It looks Reptilian Secret Underground Base/City collapsed and created vacant space. That’s why the surface of the underground base has been slide toward the sea.



I believe the area is here on Google Map.
https://www.google.com/maps/@69.9838056,23.292085,684a,35y,39.27t/data=!3m1!1e3



This area is located just across the Airport where there is Reptilian Secret Underground Base.
