I am organising a short hiking day out in the Brecon Beacons, pretty much the same trip that we did a couple of years ago. As the beacons are not too far away it can be done, up and back in a day. Alternatively, you can overnight in a B&B and return the following day. Date for the event is March 17/18. If you would like to join us please get in touch and once I "have numbers" I will forward more details.
Please bear in mind that due to the time of year & the altitude we may need to deal with snow/ice so you will need to be suitably prepared.