International travel is booming, growing by 5.5 per cent to 1.4 billion trips in the past year, but that growth is fuelling concern about over-tourism.
Tourism is a key growth driver of the global economy, outstripping overall global growth of 3.7 per cent, according to the IPK International World Travel Monitor figures released in Berlin overnight.
The survey measures the perceptions of over-tourism among international travellers.
While residents in affected destinations have been protesting for years, travellers are also feeling increasingly impaired by the ''onslaught'' of tourist in particularly sought-after cities.
The survey covers travellers from 60 countries (representing 90 per cent of all international travellers) and shows that more than every tenth international traveller was negatively affected by over-tourism.
That was an increase of 30 per cent over the last 12 months.