Chicago River, architectural landmarks, boat tour, daytime, sunny sky, clear blue water, modern skyscrapers, Willis Tower, Trump Tower, Navy Pier, ornate bridges, riverbank, lush greenery, blooming flowers, seagulls flying overhead, tourists on board, life jackets, binoculars, camera equipment, casual summer clothing, happy expressions, panoramic view, 3/4 composition, soft natural lighting, realistic reflection.