Entries are coming in thick and fast and amongst them are a father and his step-daughter doing the challenge to honour the young lady’s partner who is currently receiving treatment for a brain tumour.
Anthony Rogers, 63, (pictured left) from Corwen is teaming up with Sarah Crosby from Chorlton to tackle the tough course as a salute to Tom Lewis who was diagnosed with the tumour in March 2016.
They hope to have raised £2,000 in sponsorship by the time the event gets underway.
Tom will be supporting the walkers along with the rest of the family who will all be wearing distinctive Tom's Long Walk tee-shirts.
The Round has a well-waymarked 33-mile circular route visiting every summit around the Vale of Llangollen.
The Challenge uses exactly this route, but since it starts and ends at Dinas Brân School in the town, an extra stretch has been added at beginning and end, making the total distance to be covered 35 miles.
* Tom and Sarah.
* Sarah in her Tom's Long Walk tee-shirt.
Participants have the option of doing this in one day, the Saturday, or two, with those choosing two days being bussed back to Llangollen from the mid-point on Saturday and returned to the same place on Sunday morning.
This year organisers are hoping to raise £50,000 for Cancer Research UK.
* For more details, go to http://www.thellangollenround.info