I'd definitely recommend Braids Caravan Park in Gretna. In my wife's words, "it has the cleanest facilities we've ever used at a site". High praise indeed! The site is a 10 min walk from the centre of town (and stumble back) and just a short drive to Gretna Green where the wedding service was - which by the way was short and sweet - nice!
The following weekend we stayed a little closer to home in a CL Site just outside Fenny Bentley. The weather was fab so we had a BBQ, but there are a couple of nice pubs within walking distance too. Also close by are the Tissington and High Peak trails, and Ashbourne, where we managed a quick burst of 5 geocaches.
That rounds up March.