Chicago River, daytime, sunny weather, clear blue sky, riverboat, wooden deck, white awning, American flag waving, mature tour guide, microphone, sunglasses, smiling, gesturing, passengers sitting on benches, holding cameras, cityscape, skyscrapers, Willis Tower, Trump Tower, modern architecture, glass and steel buildings, reflection in the water, ripples on the surface, soft natural light, warm atmosphere, 3/4 composition, panoramic view.