Hello folks,
Nice idea ( to have a course meet), although I guess nobody wants to travel too far. In the light of a suggestion to a have a venue "in the middle", there is a good YHA in the Breacon Beacons. It is in a nice spot,to the north side of the National park, with walking from the front door onto the most popular routes although you need the right gear and some level of fitness, especially if you want to get to the top of the main peaks. The hostel provides an evening meal and a bar. My wife used it a couple of years ago for a group of walkers from all parts of the country. It was selected as it provided easy access both from the midlands motorway network and of course London/SE.
Just a thought - if you`re interested I can find out more based on her experience rather than a glossy brochure.
Chris