According to forum posts, the Machines de l'Île, particularly the giant mechanical elephant and the Marine Carousel, are must-visit attractions in Nantes. Travelers have called out these unique mechanical exhibits as exciting for both children and adults.

Some users recommend exploring the Château des Ducs de Bretagne, which offers a glimpse into the historical and architectural heritage of the city. The Nantes Cathedral and Jardin des Plantes are also highlighted as key spots, with the latter offering beautiful botanical collections.

For art and museum enthusiasts, forum members suggest visiting the recently restored Palais Dobrée and the Quartier Graslin. These sites are noted for their cultural and historical importance, providing insights into the local history and art scene.

Travelers have also enjoyed the unique atmosphere of Trentemoult, a quaint village accessible from Nantes, which adds a picturesque day trip option to a Nantes itinerary.

According to forum posts, Nantes Airport offers an airport shuttle service that is heavily promoted on the airport’s official website. Additionally, a cheaper alternative involves taking Tram 3 to Pirmil, then switching to bus line 38 to the airport. The shuttle ticket is valid for one hour and can be used on the TAN network and TER trains within the greater Nantes city district, but not for trains to Pornic.

Some travelers mentioned that the main rental car company lots are located directly in front of the airport terminal, eliminating the need for a shuttle service. For parking, the airport has a parking facility opposite the terminal, although it is noted to be small, especially during school holidays.

For reaching specific locations like Pornic, travelers have to travel from the airport to the main railway station in Nantes to catch a TER train. Alternatively, bus line 38 can be used to reach Rezé train station to continue the journey to Pornic, which might be a more convenient route for some travelers.