I've seen an occasional canoe in Europe (they call them Indians) but I suspect that they wold be hard to find to rent.  I've occasionally toyed with the idea of doing a canoe trip along one of Europe's major rivers but the logistics of getting my tin can to Europe always sent me looking for other ways of travel.  I had friends who sailed from England to France and then took their sailboat with the mast stowed along the canals of France to Marseilles.  The trip looked like it would be so much fun and they spent most of their nights tied to a river bank enjoying their locally obtained bread, cheese and wine.  I would still love to do the trip,  any takers? Maybe we could get a shipping container for our canoes and have it waiting for us when we get there.