'Aqueducks' members are organising a community fun day at Trevor Basin
People from 10 villages unite, forming a friends' group to encourage more visitors to Pontcysyllte Aqueduct and Llangollen Canal's World Heritage Site.
The group is believed to be the first of its kind among the 910 other World Heritage sites which include New York's Statue of Liberty and Australia's Great Barrier Reef.
And they're inviting other villagers and locals to celebrate their launch at Trevor Basin, on which Thomas Telford's aqueduct stands.
Called Aqueducks, the friends' group has been formed to encourage more visitors to Pontcysyllte Aqueduct and other features along the canal, said British Waterways community development officer Piers Warburton.
About 40 organisations staffing stalls will be on-site for the fun day, all of which stand to benefit from tourism as a result of the World Heritage status.
Imposing Pontcysyllte Aqueduct straddles the Dee
The communities covered by the 11-mile route within the heritage site include Chirk, Pentre, Froncysyllte, Trevor, Garth, Pontcysyllte, Llangollen, Pentrefelin and Llantysilio.
Piers leads the Pontcysyllte Aqueduct and Canal Community Project, a two-year scheme which has been working with the communities prior to helping them set up the friends' group which, it is hoped, will be run long-term.
"Our two year project brought together 10 principal communities along this 11 mile World Heritage Site corridor," he said.
"But it is the passion and dedication of individuals who are taking on new skills that will really deliver benefits as visitor numbers to this unique and beautiful region increase."
The fun day is held on Saturday 14 August 1200-1700 BST
Chirk Aqueduct and Viaduct are part of Llangollen Canal World Heritage Site