At first called KVGruppe Loire, later on promoted to Festung Saint Nazaire. In this area many bunkers remain and in some cases complete with armoured parts as plates and cupolas. A few inlandbatteries were built and so the according bunkers for observation. The harbour is worth the while because of the U-boatbunker (UBB) and the lockbunker with the massive 40P8 Sechschartenturm on top. The firecontrol bunkers with towers (type Fl 241 and Fl 250) for the aa-batteries are typical for this area. We spend in total three full weeks in these area and we are certain to have missed other beauties.
The strongpoints have the designation "N", or "Nz", of which N 57, the inlandbattery "Heinrich", remains our favorite.
A major addition was made by Bianca and Henk Adriaanse during their stay in 2005.