You set off to explore the Erdre or the Sèvre and play as a crew in complete autonomy on your Android phone. The RALLYE NAUTIC consists of 6 challenges: 3 timed quizzes of knowledge about Nantes and its region, 1 text with gaps and 2 games of skill and memorization. Each step is punctuated by a photo shoot that you accessorize. At the end you get and save on your phone a beautiful graphic fresco and a beautiful souvenir of your navigation at RUBAN VERT! Marker to be scanned on site.