The large ditch -LRB- fossé -RRB- behind the fort has been transformed into a marina for pleasure boats , the Bassin de l'Arsenal , to the south , and a covered canal , the Canal Saint PERSON@1 , extending north from the marina beneath the vehicular roundabout that borders the location of the fort .

The large moat behind the fort has been turned into a marina for boats , the MISC@1 .
