Is this an article?
There is also some discussion on Wikitravel:Votes for deletion.
It's been a long time since I was there (1990) but I would think Along The Rhine makes sense. There are boat tours (as I recall ours was from Mainz to Koblenz; you can get off and stay in quaint villages and hostels in castles (Schloss something-or-other) and drink sweet white wine (Gewurtztrauminer). These are some really small places so I'm not sure if there would be articles for them. I see no article for Weisbaden, maybe I'm missing it. There is Rhine Valley - which also doesn't exist - perhaps a redirect to there?--justfred 14:04, 9 October 2006 (EDT)
Is this an itinerary?