Drive Champagne yourself, with a GPS audio guide that plays automatically as you go. Your booking unlocks the whole region in the free Wine Trails app: pick your date and starting point, Reims, Épernay or Aÿ, choose the houses and growers you want from the 68 mapped across the Montagne de Reims, the Marne and the Côte des Blancs, and the app builds your personal route with turn-by-turn narration. Narrated stories cover the people behind the bottles: you'll hear how Pierre Gosset pressed still wine in Aÿ in 1584 before champagne learned to sparkle, how Jean-Rémy Moët's friendship with Napoleon carried Épernay across Europe, and why Eugène Mercier hauled a 200,000-bottle barrel to the 1889 World's Fair. No group, no schedule, no guide; pause for a long lunch, replay anything, and the audio keeps working when the signal drops, because everything downloads offline. You'll need a car and a designated driver; cellar visits are booked and paid directly with the houses.