There are plenty of sites, it just depends what you are looking for really. I think you need to be a bit more specific in order for folk to be able to recommend. Does it need to be near to the coast, or a more central location? Would you prefer a family site or adults only? Do you want a swimming pool on site or a clubhouse with entertainment, or just a quieter place to eat? Do you need electric hook up, hardstanding, or an all service pitch? etc. Alternatively, take a look at the campsite search section of this site and read some of the reviews. Best of luck.
Amazing family weekend with old steam engines, classic car displays, market stalls, and full catering and bar. And camping on site - Save £25 by booking in advance.