Attingham Park, just outside Shrewsbury, is always good vfm if you're a national trust member or care to join. Bracing walk through the extensive parkland, possibly taking in the trail round the remains of the WW2 USAF base, wander through the walled garden and observe the slumbering bees, buy some of their organic veg or some secondhand books from the rambling bookshop in the stables, and tuck in to a nice afternoon tea with scones and that. I believe the scaffolding has just come down inside the house after they've spent two years building a huge glass roof over the fancy ironwork of the Nash original, which had been leaking for the last two hundred, so that should be worth a look. Next month they have a couple of late nights at which one can wander around admiring snowdrops by the light of hundreds of tea lights and then have a glass of plonk, which sounds like a good excuse.