Hills From the Door
Brecon Bunkhouse lies in a hidden valley in the Black Mountains, right on the popular walking routes for Castell Dinas and Waun Fach. Once you have arrived, you don't need the car to start walking, or to reach the local pub (bring a torch for the walk home!).
With exclusive use, the whole bunkhouse is yours: £800 for the weekend, about £14.30 per person per night for a group of 28.