Chicago cityscape, architectural landmarks, boat tour, 45-minute duration, daytime, sunny weather, clear blue sky, Lake Michigan waters, calm waves, gentle breeze, Seadog Cruise's vessel, white and blue stripes, outdoor seating area, people taking photos, Chicago Riverwalk, Willis Tower, Tribune Tower, Wrigley Building, Navy Pier, urban landscape, modern skyscrapers, historic buildings, detailed stonework, glass reflections, vibrant city life, panoramic view, 3/4 composition, soft natural lighting.