* Pontcysyllte Aqueduct at the heart of the World Heritage Site.
A Wrexham councillor says the area around the world-famous Pontcysyllte Aqueduct doesn't need any more tourists and is at "saturation point" after attracting over half a million a year at the last count.
And Rondo Roberts, the independent member for the Llangollen Rural ward which covers the World Heritage Site, describes some of the problems being caused by visitors to the iconic River in the Sky as "just not unacceptable", including swearing or threatening with violence residents who point out they are parking in the wrong places.
* Cllr Rondo Roberts.
He also fears things could get even worse if the proposed new National Park gets the go-ahead.
Cllr Roberts, who was born and brought up close to the aqueduct, hinted at the problems being caused by the large influx of tourists in a comment he made on a Facebook post highlighting a llanblogger story last week in which North Wales Senedd Member Sam Rowlands said Welsh Government policies were hitting tourist numbers in his constituency.
But Cllr Roberts commented on Facebook: "... Don't need any more tourists in Llangollen Rural (Aqueduct) we're at saturation point with the 500K and rising."
When llanblogger asked him to explain further he said the figure he quoted came from Wrexham Council's economic development department.
"The annual figures are based on counters and clickers placed at two points close to the aqueduct. In 2019, before the pandemic, these recorded that the area had been visited by 394,000 people. By the time of the latest count this summer this had risen to over 500,000.
"We've had enough and we can't handle any more. The infrastructure and roads around Fron and Trevor just can't cope.
"People just park anywhere. They leave their litter and rubbish behind them and walk off. They are parking on grassed areas which just get churned up when it rains.
"Some are very rude to local residents who say anything to them about this. They have been sworn at or even threatened with violence. This is just not acceptable."
Cllr Roberts added: "I do what I can and I must say I have had plenty of support from the leader of the council, Mark Pritchard.
"I recently had a meeting with senior council officers about the delay in opening up a large, new car park for the area on the old Monsanto chemical site. I have also had temporary signs put up helping people coming in off the A5 to locate the existing car parks. I'm now pushing for permanent signs.
"The aqueduct is the jewel in the Wrexham crown and right up there with the football ground when it comes to attracting visitors. But even if this wasn't a World Heritage Site the genie is now out of the bottle and they would still come here in droves.
"If the new National Park is approved there would be even more people coming to the area and we are not coping with the numbers we already have.
"We have got to bite the bullet with the finances and find a different way of managing our World Heritage Site."