The lower Keys were home to many wealthy shipping merchants whose fleets operated from these waters.
But are those really submarine pens?
If true these things are the most expensive toilet seats the Navy ever sat on.
But they do make a pleasant recreational area for Keys civilians, I must say.
Conchscooter poked around the internet but couldnt find any mention of a submarine based at Boca Chica.
The Cuban Missile Crisis effectively killed the housing project.
There was even a mess hall built in the temporary area.
As with most stories, they are embellished every time they are told.
The boat canals soon became WW2 submarine pens.
Sources:Wikipedia/Naval Technology.
All images courtesy of Oceansir.com
