After visiting Notre-Dame Cathedral, take a leisurely stroll along the banks of the Seine River. Enjoy the picturesque views of the river, lined with charming bookstalls, quaint cafes, and beautiful bridges. Take a moment to relax on one of the benches and soak in the atmosphere of this romantic setting. If you're feeling adventurous, consider renting a bike or taking a boat tour to explore the river further. Don't forget to capture some memorable photos of the stunning Notre-Dame Cathedral from the riverside.