At “Quai Saint-Léonard” :
https://www.waze.com/fr/editor/?env=row&lon=5.58659&lat=50.64699&layers=2981&zoom=8&mapProblemFilter=0&mapUpdateRequestFilter=0&venueFilter=0&segments=306342831 : You should be able to go straight
https://www.waze.com/fr/editor/?env=row&lon=5.58657&lat=50.64707&layers=2981&zoom=8&mapProblemFilter=0&mapUpdateRequestFilter=0&venueFilter=0&segments=290905074 : You should be able to go left (East)
https://www.waze.com/fr/editor/?env=row&lon=5.59147&lat=50.64803&layers=2981&zoom=5&mapProblemFilter=0&mapUpdateRequestFilter=0&venueFilter=0&segments=295342605,294416611,300927847,307662630,307662629,279072107,279072110 : You should be able to go to “Place des déportés”, from East, on Sundays