HEIDELBERG, GERMANY - JULY 20: Catherine, Duchess of Cambridge participates in a Rowing race between the twinned town of Cambridge and Heidelberg and against Prince William, Duke of Cambridge on the second day of their visit to Germany on July 20, 2017 in Heidelberg, Germany. The royal couple are on a three-day trip to Germany that includes visits to Berlin, Hamburg and Heidelberg. (Photo by Thomas Niedermueller - Pool/Getty Images)
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HEIDELBERG, GERMANY - JULY 20: Prince William, Duke of Cambridge participates in a Rowing race between the twinned town of Cambridge and Heidelberg and against Catherine, Duchess of Cambridge on the second day of their visit to Germany on July 20, 2017 in Heidelberg, Germany. The royal couple are on a three-day trip to Germany that includes visits to Berlin, Hamburg and Heidelberg. (Photo by Thomas Niedermueller - Pool/Getty Images)
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HEIDELBURG, GERMANY - JULY 20: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge after competing as they cox of rowing boats in a friendly race between the twinned town of Cambridge and Heidelberg on the Neckar River during the second day of their visit to Germany on July 20, 2017 in Heidelberg, Germany. The royal couple are on a three-day trip to Germany that includes visits to Berlin, Hamburg and Heidelberg. (Photo by Bruce Adams-Pool/Getty Images)
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HEIDELBERG, GERMANY - JULY 20: Prince William, Duke of Cambridge opens the barrel of beer after participating in a rowing race between the twinned town of Cambridge and Heidelberg and against Catherine, Duchess of Cambridge on day 2 of their official visit to Germany on July 20, 2017 in Heidelberg, Germany. (Photo by Chris Jackson/Getty Images)
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HEIDELBERG, GERMANY - JULY 20: Catherine, Duchess of Cambridge celebrates with a beer after participating in a rowing race between the twinned town of Cambridge and Heidelberg and against Prince William, Duke of Cambridge on day 2 of their official visit to Germany on July 20, 2017 in Heidelberg, Germany. (Photo by Karwai Tang/WireImage)
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