Explore the fascinating phenomenon of tidal bores in this Oxford Mathematics Public Lecture by Michael Berry. Delve into the physics behind these remarkable river events where incoming high tides create smooth jumps or breaking waves, causing rivers to reverse direction. Learn how tidal bores relate to tsunamis, rainbows, and concepts from relativity and quantum physics. Discover the importance of 'minimal models' in mathematical explanations and how different cultures describe the same natural occurrences. Gain insights into the first unification in fundamental physics as Professor Berry, an Emeritus Professor of Physics from the University of Bristol, guides you through this captivating 52-minute journey from the rivers of the UK to the Hooghly in India and beyond.