WW2 U Boat Pens St. Nazaire France Today ~ A Visitor’s Guide. October 24, 2018 Unipro2013main Battle of the Atlantic, WW2, WW2 Documentaries WW2 U Boat PensThis video gives an overview of what there is to see at the St. Nazaire U Boat Pens in France. There is also a brief detail of the pens and an indication of where to park.Credit : Nick Cooke