Chicago River Architecture Tour, daytime, sunny weather, clear blue sky, calm water reflection, Chicago cityscape, skyscrapers, Willis Tower, Tribune Tower, historic buildings, modern glass architecture, boats, vessels, kayaks, paddles, life jackets, guides, binoculars, headsets, narration, educational, informative, 90-minute duration, leisurely pace, seated cruise, open-air boat, comfortable seating, safety rails, captain, crew, Chicago Riverwalk, bridges, urban landscape, water-level perspective, panoramic view, wide-angle lens.