This strongpoint without Lo number is perfectly situated on a small island in the river Blavet to protect the entrance of the port with the U-boat bases. In 2005 Jörg Poweleit and his team of specialists got permission from the French navy authorities to visit the island. This was an once in a lifetime opportunity. We are very fortunate that we can show the results here. We thank Jörg and his teammembers for their unique pictures. Besides the given bunkers a 676 and a St with unknown function are buit. The German archives show a 668 and a 671 as planned.
The 634 watches over Keroman III.