Paris-Boulogne-sur-Mer buses: go to Nausicaá, the largest aquarium in Europe Travel from Paris to Boulogne-sur-Mer in less than four hours to see the spectacular ocean show offered by Nausicaá, Europe's largest aquarium, thanks to the bus service that now runs daily between the two cities. The FlixBus company provides a daily bus service between Paris and Boulogne-sur-Mer and back in three and a half hours. The price varies from €8.99 to €19.99 depending on the route you choose. The FlixBus route between Paris and Boulogne-sur-Mer is usually direct. If your departure dates mean that you cannot take the direct FlixBus route between Paris and Boulogne-sur-Mer, there are also routes from Paris to Calais, which take four hours and cost around €19. Once in Calais, you can take the train to Boulogne-sur-Mer. The journey only takes about 20 minutes, and the basic tickets cost €7.20. All information can be found on the FlixBus website. Paris-Boulogne-sur-Mer trains: stop at Nausicaá Come and marvel at the spectacle of Europe's largest aquatic tank, Nausicaá, on the French Opal Coast in Boulogne-sur-Mer, courtesy of the regular train services between Paris and Boulogne. SNCF trains from Paris to Boulogne-sur-Mer leave from Paris-Gare du Nord. The journey from Paris to Boulogne-sur-Mer by SNCF train only takes about two hours. Train tickets from Paris to Boulogne-sur-Mer cost between €15 and €46. The reason for this price difference is that some train journeys are made by regional train (TER) and others by high-speed train (TGV). Furthermore, your date and time of departure from Paris to Boulogne-sur-Mer will also affect the cost of your train ticket, as well as the class in which you travel (first or second class). Go to Boulogne from Paris Nord to Lille Europe, for €15 to €22 and a journey of less than an hour, then take the train between Lille Europe and Boulogne-sur-Mer, also for less than an hour, for a €25. Find out more on the SNCF website. Get to Nausicaá by car or by carpooling Another way to get to Nausicaá to see the most beautiful and fascinating aquatic animals is of course by car. Take your own car or a carpool from Paris to Boulogne-sur-Mer: By private car: the journey takes between three and four and a half hours depending on which route you take. For the shortest route, via the A115 and A16 motorways, the toll is €21.30. You can also take the A1 and A16 motorways, which take less than three and a half hours and cost less (€19.30). Another option is to take the A1, A29, A16 motorways and the D96 road, which takes just over three hours and costs €24.50 in tolls. If you do not want to take the motorway, the journey takes four and a half hours and takes you close to the city of Rouen, taking the free sections of the A15 and A28 motorways and then the secondary roads. By carpooling: journeys between Paris or surrounding towns and Boulogne-sur-Mer or nearby are available almost every day via carpooling sites such as BlaBlaCar. Carpooling rates between Paris and its suburbs and Boulogne-sur-Mer range from €19 to €45 depending on the departure date and time.