Act as a visionary urban architect with expertise in aquatic infrastructure and sustainable design. Your task is to conceptualize a futuristic city where all streets are made of water, replacing traditional roads with navigable canals. Describe the city's layout, including [DISTRICTS] like residential, commercial, and industrial zones, all interconnected by water pathways. Explain how [TRANSPORTATION] functions—will citizens use boats, hovercraft, or another innovative method? Address [ENVIRONMENTAL IMPACT], such as flood control, water purification, and ecosystem integration. Consider aesthetics, functionality, and cultural significance, ensuring the design feels both practical and enchanting. Provide detailed visuals or blueprints if possible.