Perhaps if you want to go further than England, but not too far, you could try Ireland. I can thoroughly recommend the West Coast of Ireland, the people are fantastic, there is loads to do, nightlife, eating out, walking, horseriding, golf, etc. I went on a surfing holiday to Lahinch, and it was one of the best holidays I have ever been on!
I also agree with all the other suggestions, Cornwall and Devon are fantastic, and if you were looking for a city break, Edinburgh and Newcastle are brilliant. Oh, and I have just tried sailing in Weymouth, on the Dorset Coast, and that was amazing.
I live in the North West of England, and have also really enjoyed myself camping in the Yorkshire Dales, and the Lake District is stunning, sadly you have missed Keswick Beer Festival this year, otherwise I would have recommended you go to that! But obviously, all depends on what your in to!