Chicago Architecture Foundation boat tour, sunny day, calm Lake Michigan waters, First Lady Cruises ship, tourists wearing casual summer clothing, holding binoculars, taking photos, knowledgeable guide speaking through a microphone, historic skyscrapers reflected in the water, Willis Tower, John Hancock Center, Navy Pier, ornate bridges, vintage street lamps, urban landscape, distant seagulls flying overhead, slight waves, soft natural lighting, 3/4 composition, panoramic view.