Seine River Cruise and Paris Canals Tour. See Paris’s iconic landmarks and lesser-known gems from the water on this 2.5-hour combo cruise down the River Seine and Canal Saint Martin. Glide past riverside monuments like Notre Dame and the Louvre, and then explore a side of Paris many tourists miss as you float through the tunnels, bridges and locks of the city’s historic canal system. Live onboard commentary from your guide illuminates the story of these picturesque waterways built by Napoleon. Choose from several daily departures to suit your sightseeing schedule. Book and Save 20%: Seine River Cruise and Paris Canals Tour.