Strasbourg is set among waterways. Arrive on a canal boat.
Hire from just up the canal (Saverne or Lutzelbourg) and stay moored free just before the Rhine lock gates.
Five minutes from the centre by bike (hired with the boat) and you get to see the Alsatian countryside.
Try a night moored at Saverne, looking up at the Bishop's Palace where Cagliostro studied and Cardinal Rohan welcomed Marie Antoinette as she arrived to make a doomed marriage. Beats a static hotel room any day.