COPENHAGEN, DENMARK - JUNE 20: Crown Prince Naruhito of Japan on a boat trip with Crown Princess Mary of Denmark on June 20, 2017, Copenhagen, Denmark. The trip went through the channel in the old harbour to the Little Mermaid statue. Crown Prince Naruhito is on a 6-day visit to Denmark to commemorate 150 years of diplomatic ties. (Photo by Ole Jensen - Corbis/Corbis via Getty Images)
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COPENHAGEN, DENMARK - JUNE 20: Crown Prince Naruhito of Japan and Crown Princess Mary of Denmark at the harbour where they will take a boat trip through the channels to the Little Mermaid statute on June 20, 2017, Copenhagen, Denmark. Crown Prince Naruhito is on a 6-day visit to Denmark to commemorate 150 years of diplomatic ties. (Photo by Ole Jensen - Corbis/Corbis via Getty Images)
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Corbis Entertainment Ole Jensen

COPENHAGEN, DENMARK - JUNE 20: Crown Princess Mary of Denmark as seen at the harbour where she and visiting Cron Prince Naruhito of Japan will take a boat trip through the channels to the Little Mermaid statute on June 20, 2017, Copenhagen, Denmark. Crown Prince Naruhito is on a 6-day visit to Denmark to commemorate 150 years of diplomatic ties. (Photo by Ole Jensen - Corbis/Corbis via Getty Images)
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Corbis Entertainment Ole Jensen

COPENHAGEN, DENMARK - JUNE 20: Crown Prince Naruhito of Japan and Crown Princess Mary of Denmark at the harbour where they will take a boat trip through the channels to the Little Mermaid statute on June 20, 2017, Copenhagen, Denmark. Crown Prince Naruhito is on a 6-day visit to Denmark to commemorate 150 years of diplomatic ties. (Photo by Ole Jensen - Corbis/Corbis via Getty Images)
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COPENHAGEN, DENMARK - JUNE 20: Crown Prince Naruhito of Japan on a boat trip with Crown Princess Mary of Denmark on June 20, 2017, Copenhagen, Denmark. The trip went through the channel in the old harbour to the Little Mermaid statue. Crown Prince Naruhito is on a 6-day visit to Denmark to commemorate 150 years of diplomatic ties. (Photo by Ole Jensen - Corbis/Corbis via Getty Images)
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