If you're looking for a writing holiday in the UK you could keep an eye on this site to see what's on offer in future. It's an experience I can very highly recommend.
Technically B&B accomodation with a few hours seminars a day, in reality it was more like an open house with hot and cold running advice and encouragement.
Apart from the seminars I also got a lot out of having the chance to spend time talking to other people with an interest in writing and hearing about what they're working on. I'll be keeping an eye on bookshop shelves for the work of the course alumni!
As you can see, there was time for a stroll along the prom as well.
Now all I've got to do is put what I've learned into practice...