Chicago Architecture Foundation's Architectural Boat Tour, sunny day, calm Lake Michigan water, clear blue sky, modern skyscrapers lining the shoreline, historic buildings reflected in the water, luxurious yacht, sleek design, white and glass exterior, open-air deck, tourists wearing sunglasses, holding binoculars, taking photos, knowledgeable tour guide standing at the bow, microphone in hand, gesturing to notable landmarks, Willis Tower, Navy Pier, ornate bridges, 3/4 composition, warm natural light, gentle ripples on the water surface.