Hmm... I remember someone calling into Coast to Coast AM years ago... around 2009 or 2010 maybe. He was a professor doing some satellite thermal imaging. He picked up some heat signatures of obvious rectangles indicating giant underground rooms in Virginia underneath mountains or hills or whatever. Some MIBs ended up taking the images before they could be published. Speculation was that they were secret military facilities.

Sorry that it's sorta off-topic, except that if we got a thermal or some other view of the island, it could indicate underground structures.