See more photos from the event
Action man Prince Harry was on hand to meet families of a team recreating an escape across the North Sea from Nazi-occupied Holland during WWII.
Four men from Suffolk – including the royal's personal friend Olly Hicks – were joined by two Dutchmen as they began the trip on Monday night.
Olly was the only British team member to finish – the rest dropped out due to exhaustion.
"I am truly amazed at what the team have achieved during the past few days," said Harry in a statement.
Photo: © PA