Chicago, architecture, boat tour, promo code, summer afternoon, sunny day, blue sky, Willis Tower, John Hancock Center, Navy Pier, Lake Michigan, calm waters, sailboats, yachts, seagulls flying overhead, cityscape, modern skyscrapers, historic buildings, ornate bridges, vibrant flowers, lush greenery, happy tourists, smiling faces, sunglasses, casual summer clothing, life jackets, binoculars, camera, panoramic view, low-angle shot, dramatic lighting, warm colors, soft focus.