When restoring the continuity and order of Chemin des Douaniers I have tried to  deduce your intentions and the situation on the ground from what you have done and from the Strava heatmap. 

It seems that the route went inland from there before going east at Route du Prado and that now it takes the steps to follow the cliff until it reaches Route du Prado and goes east like before. Do you confirm that this is consitent with the situation on the ground?