So these routes are fairly well travelled but I include them here for their easy access and great natural beauty.
If you have just finished the Alsace route and still have more time then this is an easy one to add on. Just follow the Rhine from Strasbourg north to Cologne to be taken through this area with great historical and natural significance. We found it easier to do a short cruise from Bingen am Rhein in order to get a better view of the surrounding castles.
This is another easy add-on if you have just travelled the Alsace route or the Rhine route above from north to south. From the ‘Black Forest’ & cuckoo clocks to Fairytale castles and pristine Alps this route will also pass the southern end of the ‘Romantic Road’.