The Northwest Passage is becoming a 'worrying reality' warns Prince Charles in Canada

It's not a place you can access by road or rail.

And you won't find many people here.

The Canadian territory of Nunavut, into which the Prince of Wales and Duchess of Cornwall flew today, is one fifth of the size of Canada and two million square kilometres in size.

But you'll find little more than one person on average for every 100km here.

This community - the gateway to the Arctic Circle - marks the first stop on a short visit to Canada for Charles and Camilla.

They arrived in Iqaluit, the capital of this Inuit region, on board the Canadian Prime Minister's plane.

Justin Trudeau's official Airbus 310 had been sent to RAF Brize Norton to collect the royal travelling party.

Remember in Canada the Queen is still the Head of State, as she is in 15 countries outside the UK.

The Prince and Duchess will help Canadians mark the 150th anniversary of their country.

They celebrate Canada Day on 1 July every year but this year is the sesquicentennial - or 150th - year since the British North America Act was signed in 1867.

It created the Confederation - a self-governing dominion - which kept its ties to the British crown.

Those planning this year's Canada Day celebrations promise it will be the most impressive and memorable in Canada's history.

Nearly half-a-million people are expected to be in the capital, Ottawa, on Saturday when Charles and Camilla take part in a series of events at which they will represent the Queen.

Flying into Frobisher Bay Credit: ITV News/Chris Ship

But the official tour begins today among the Inuit people in a community that was formerly known as Frobisher Bay.

It is a barren and remote landscape, north of the tree line, where the impact of climate change is a real, and growing, threat.

Of course, Prince Charles has been voicing his concerns about climate change long before most people knew what the term meant.

His first speech on the environment was in 1968 when he was just 20 years old.

And in this part of Canada they worry about sea levels, shrinking glaciers, changing weather patterns and the impact on wildlife and animals, including polar bears.

  • Mary Ellen Thomas, from the Nunavut Research Institute

In a speech, the Prince of Wales will tell his hosts that the connections between the UK and the Inuit here date back to the 1500s when the explorer Sir Martin Frobisher was looking for the fabled Northwest Passage.

Then it was impassable - but today, the Prince will say, global warming caused by human activity is making the Northwest Passage 'a deeply worrying reality' which will bring 'rapid and damaging changes to the Arctic Way of life.'

The Prince has made many such speeches and written many such articles but the impact of this one is all the greater as it is delivered to Inuit people who fear for their future livelihoods on the edge of the Arctic Circle.