That's a good idea David, I would "second" Marks answer too. It must be getting really difficult to book a pitch at this late hour, especially somewhere central, with fishing on site and loads of semi organised activities, just for the pleasure of fellow caravaners.
Look on the bright side. If you cannot get anywhere for Easter then you will be missing crowded sites, screaming kids and adults and horrendous traffic both there and back.
The downside is if you live in a tourist attraction like me then you will find the b.....s are all on your doorstep.
Unfortunately David you have not stated where you live or how far you intend to go. Try Widend Caravan site in Paignton. very nice quiet site. My wife and I are going there Thursday for a week.