I'd definatley suggest Llandegfedd - If this weather keeps up you could have a great day on the buzzers and could always pass on anything you find out to me who is fishing the trials there a few days later


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if it's a small water you're looking for then Cefn Mably is probably your best bet around Cardiff. Assuming you're coming down the A470 you've always got Clywedog nr Llanidloes or Llyn Gwyn nr Rhayader for a hlaf way stop, The beacons resevoirs between Brecon and Merthyr also worth a go.
You might also be lucky and get a couple of places at Gludy Lake nr Brecon. You usually book the whole lake for the day for 6 people but I've fished there before now with a mate just by phoning the night before and seeing if they had any space available.