The word 'kilometres' is correct and usable in written English.
You can use it when referring to a distance in terms of kilometres, such as when indicating the length of a journey or journey time. Example sentence: The journey to our holiday destination took us six hours and covered over five hundred kilometres.
Even if you think it's scientifically relevant to compare the Arctic to Antarctica (it's not because one is a land mass and the other is an ocean) since 1979, the Arctic has been losing about 1.8 million square kilometres of ice, whereas Antarctica has been gaining about 0.28 million.
I had my trusty tent strapped to my backpack so setting up camp on the sand would be straightforward enough, but I also knew that the four stone walls – albeit slightly dilapidated and certainly not heated – of a bothy (a disused building maintained by volunteers for walkers' use) were just a couple of kilometres away.
In July four people died when the boat they were traveling on capsized while it was being escorted to Christmas Island by Navy boats HMAS Albany and HMAS Warramunga approximately 130 kilometres off the coast.
A force of 12,000 policemen stormed the colony and evacuated the 70,000 residents overnight to a swampy area four kilometres away (that turned into another, still extant, slum called Cheetah Camp).
And while you probably haven't read much about it, the outcome could see the creation of the two largest areas of protected ocean on the planet that would lock out fishing from more than 1.5 million square kilometres of ocean around the Antarctic.
Bushfires are at their most perilous in the southern state of Victoria during the high summer months of January and February, when the vast forests and farmlands are dry and stretch out in wait, over thousands of kilometres, for the inevitable lightning showers and wind storms.
We followed the Nile on her 1,000-mile "s" bend across the Nubian desert, visiting isolated Meroitic pyramids and temples, where we were the only tourists; traversed hundreds of kilometres of wild desert; clambered on the abandoned Nile river cruisers at Atbara.
Beside the road that leads to Durban, 60 kilometres away, stands a sprawling acacia tree.
The National Museum of Australia stands a few kilometres away on the northern bank of Lake Burley Griffin, on what is still a sacred meeting site.
At an altitude of 3,500 metres, it looks down on the Atacama desert, the driest place on earth, and on each side snow-capped volcanic peaks stretch away for hundreds of kilometres to the north and south.
Even on a hot summer's day you start to wonder: "Hey, where is everyone?" One hundred kilometres is a daunting distance, but the event's organisers, Threshold Sports, have done everything they can to make the race accessible and inclusive.
