Geneva is an exceptionally walkable city, especially for tourists focusing on the central and historic districts. The city is relatively compact, and most major attractions—such as the Jet d'Eau, the Flower Clock (L'horloge fleurie), and the charming Vieille Ville (Old Town)—are within a 15-to-20-minute walk of each other. Walking along the Quai du Mont-Blanc offers stunning views of Lake Geneva and the Alps, and the pedestrianized streets of the Old Town are perfect for exploring historic cathedrals and hidden squares. For distances that are slightly too far to walk, such as the Palais des Nations (UN Headquarters), Geneva offers an efficient public transport system that is actually free for tourists staying in hotels, youth hostels, or campsites via the "Geneva Transport Card." Even the "Mouettes Genevoises" (yellow water taxis) that shuttle passengers across the lake are included in this free transport scheme. Because the city is so flat near the water and well-signposted, walking remains the most scenic and popular way to experience the high-end watch boutiques and lakeside atmosphere.