Prince William and wife Kate make pretzels on visit to Germany - in pictures

Heidelberg is twinned with Cambridge in the UK

Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attempt to make pretzels during a tour of a traditional German market in the Central Square on day 2 of their official visit to Germany. Chris Jackson / Getty Images

Britain's Prince William and his wife Kate, the Duchess of Cambridge, from left, arrive at German Cancer Research Centre in Heidelberg, Germany. The British Royal couple and their children are on a three-day-visit to Germany. Matthias Schrader / AP Photo

Britain's Prince William, Duke of Cambridge, and Catherine, Duchess of Cambridge, arrive for a visit to the German Cancer Research Centre in Heidelberg. Ronald Wittek / EPA

A spectator holding an umbrella in the British national colours waits for Britain's Prince William and Catherine, Duchess of Cambridge at the German Cancer Research Centre in Heidelberg. EPA

Britain's Prince William jokes with children during a tour through the city centre with Heidelberg's Mayor Eckart Wuerzner in Heidelberg. EPA

Spectators wave with British flags and hide from rain under umbrellas as they wait for the visit of Britain's Prince William, Duke of Cambridge, and his wife Kate, the Duchess of Cambridge. AFP

Spectators watch the arrival of Britain's Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge for a visit at the German Cancer Research Centre in Heidelberg. EPA

A wellwisher waits for the arrival of Prince William and Catherine ahead of their tour of a traditional German market in the Central Square on day two of their official visit to German. Chris Jackson / Getty Images

Britain's Prince William, centre right, and his wife Kate, the Duchess of Cambridge, centre left, arrive at the German Cancer Research Centre in Heidelberg, Germany. Matthias Schrader / AP Photo

The Duke and Duchess of Cambridge have visited a cancer research centre and made pretzels in the university city of Heidelberg on the second day of their visit to Germany.

Prince William and his wife, Kate, toured the German Cancer Research Centre on Thursday, peering through a microscope for a glimpse of the facility's work. British researcher Michael Milsom, an expert in the development of blood stem cells, said he could never have dreamed of presenting his research to his future king.

At a market in downtown Heidelberg, the couple practised shaping pretzels.

Baden-Wuerttemberg state governor Winfried Kretschmann gave the couple a specially made cuckoo clock with a British flag. Prince George and Princess Charlotte were given teddy bears with their names embroidered on.

* Associated Press