On your second day, immerse yourself in the natural beauty of Grenoble and its surroundings. Head to the Parc Naturel Régional de Chartreuse, a stunning national park located just a short drive from the city. Enjoy hiking or cycling through the park's picturesque trails, surrounded by lush forests and breathtaking mountain views. If you're feeling adventurous, try paragliding or rock climbing in the nearby Vercors Massif. In the afternoon, visit the Jardin des Dauphins, a beautiful botanical garden in the heart of Grenoble, perfect for a leisurely stroll or a picnic.