It will be a sad day if New Zealand decides to charge for access to tracks in its national parks. Something of the country's character will be lost when people can no longer walk in these wonderful, remote places at will, knowing they are open and free.
But that day might not be far away, according to Department of Conservation director-general Lou Sanson. The tourism boom and the popularity of these excursions, particularly the Great Walks, have caused an "explosion" of numbers on the tracks, he says.
He does not quite advocate a charge but thinks it is a possibility to consider, both to reduce the numbers and to help pay for the removal of waste and cleaning camping areas.
According to the latest report, fully half of the international visitors to New Zealand come to enjoy our natural environment in some way.
A good many of them are doing walks such as the Tongariro Alpine Crossing. So many, says Sanson, that when he was there with the US ambassador in March, "every time we stopped we were surrounded by 40 people". That, he added, "is not my New Zealand". Perhaps the character of the country has already been lost in these places, and a charge for access would help restore it.