Jun 1, 2009, 15:36 GMT
Copenhagen - The heirs to the thrones of Demark, Norway and Sweden on Monday ended a five-day visit to Greenland in a bid to raise awareness about climate change and global warming.
'It was not warm, but it went well,' Crown Prince Haakon of Norway said after a night spent in a tent, Norwegian tabloid Verdens Gang reported.
The royals said they were impressed after a visit to a site where researchers are drilling into the inland ice sheet estimated to be some 3 kilometres thick.
Greenland's ice sheets and glaciers are under threat from rising global temperatures, and offer researchers a chance to study the effects of global warming.
Swedish Crown Princess Victoria praised the hospitality of local Greenlanders despite the freezing temperatures.
Victoria decided to take part in the trip although her fiancee, Daniel Westling, underwent a kidney transplant the same day the trip began last week.
The visit to Greenland, the world's largest island, was a first for Victoria, while Danish Crown Prince Frederik a few years ago took part in a dog-sled expedition across the Arctic island.
The royal trio were accompanied by researchers on their visit.
Denmark next December is to host a United Nations conference where the aim is to reach an international climate change agreement to replace the Kyoto Protocol.
Greenland is soon to get more autonomy within Denmark under the terms of enhanced home-rule it has had since 1979.
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