Chicago River architecture tour, daytime, sunny weather, blue sky, few white clouds, modern glass building reflections on the water, sailboat or speedboat, wooden deck, tourists with cameras, sunglasses, hats, casual clothing, holding onto railings, laughing, smiling, panoramic view, 3/4 composition, soft natural light, warm atmosphere, Lake Michigan waterfront, Willis Tower, Navy Pier, urban landscape, cityscape, vibrant colors, HDR.