The tourist board for Western Norway, the site of the country’s most magnificent fjords, has slashed its promotion budget for next summer after surging visitor numbers in the wake of the success of Disney's Frozen led to fully-booked hotels, traffic problems and queues at popular destinations.

“This year is sort of off the charts… quite incredible,” said Kristian Jorgensen, managing director of Fjord Norway. “There are days when there are too many people at some of the smaller destinations like Geiranger and Flam. We have very few of them, but we are not trying to make more of them.”

The number of people hiking up to the a spectacular Trolltunga (Troll tongue) promontory has increased from 1,000 to a 100,000 over just five years, while that visiting Preikestolen (Pulpit Rock), another vertigo-inducing attraction, has increased from 60,000 in 2009 to 300,000 today.