Maybe the US Navy built an underground bunker, fort or nuclear missile silos under Little St. James as it did on other St. Thomas islands such as nearby Water Island in WWII.

Then gave them away after abandoning them? Maybe Epstein just remodeled it?

Zero evidence of the massive construction footprint or debris necessary any time recently. A small fraction has been hinted at with photos and the "tennis court". What if the underground base was actually built during or just after WWII?

Hopefully not too China Lake cray-cray.

1. "Fort Segarra - Water Island, Virgin Islands"

https://m.youtube.com/watch?v=aLqb6whByt4

1. Life Magazine printed an article about the underground fort on Water Island on January 12, 1962 in an edition about doomsday bunkers.

https://www.goantiques.com/life-magazine-jan-47329203

1. "History of Water Island In The U.S. Virgin Islands"

http://www.waterislandhistory.com/militaryhistory.html

1. "Most travelers have never heard of this gorgeous US island in the Caribbean"

https://www.businessinsider.com/water-island-is-a-secret-island-in-the-usvi-2015-7

1. "These 12 Formerly Top-Secret Bunkers Are Now Tourist Attractions"

https://www.fodors.com/news/photos/these-12-formerly-top-secret-bunkers-are-now-tourist-attractions