Chicago River, daytime, sunny weather, clear blue sky, sailboat, tourists, mixed ages, casual clothing, sunglasses, hats, life jackets, holding cameras, smiling, excited, relaxed, Chicago's iconic skyline, Willis Tower, Tribune Tower, Wrigley Building, historic buildings, modern skyscrapers, bridges, riverbank, lighthouse, seagulls flying overhead, gentle water waves, soft sunlight reflecting off the water, panoramic view, low-angle shot, cinematic composition.