The besotted royal reportedly wanted to “test her love for him” by spending a night in the Norwegian wilderness, with little more than wild predators for company.
According to the Daily Star Sunday, the trip to the remote mining town of Barentsburg was an indication that the 35-year-old actress could be the one for Harry.
An unnamed source told the paper: "Harry always said that he’d know if a girl was the one if he could take her to the middle of nowhere and she survived.
“Harry’s always on this quest for inner peace and it’s only in these silent spots he seems to find that.
“Allowing Meghan into that world was a huge love test.”
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The couple apparently made the trip earlier this month, after celebrating the new year in the northern city of Tromso.
They then headed north to the remote Svalbard archipelago, in the Arctic Ocean, before a gruelling eight-hour drive across the tundra on snowmobiles.
Harry and Meghan then reportedly spent the night camped out in polar bear territory, accompanied by explorer Inge Solheim, a friend of the Prince who is also known as “The Ice Ninja”.
Meghan and Harry travelled to a remote Norwegian island
Visitors to Svalbard are required to carry appropriate scare device to ward off polar bears when travelling out of main territories. They are also advised to carry a gun as a last resort.
The couple’s companion Solheim was said to have used flares to keep the marine mammals at bay.
Before taking things to the extreme, other highlight’s of the loved up couple’s Scandinavian adventure included whale watching and seeing the Northern Lights.