I like to walk from my apartment down the Seine on the river level quai and cross to the right bank on Pont de Austerlitz and go down into the Paris Arsenal and walk through the little quai-side parc.
That leads to La Bastille.
Keeping in the same direction, beyond the gold guy on the column:
I start walking up the covered portion of Canal St Martin.
After awhile the canal re-appears in a series of écluses, stiles and slack water stretches.
Then at rue Crimée I leave the canal and go on to Parc des Buttes-Chaumont.
But that story is for another day.