Hi
We camped at bournemouth last year and there were no showers!! We have a very old caravan and were not impressed at this as we do not have a shower in our caravan.
There were toilets but they were only situated in one place so for us it was a hike to get there!!
However this was last year after all of the floods and the show had to be moved so it might have been a problem getting showers, so all I can say is I dont know if they have them or not!!
Sorry to not be of much help!!
We are going again this year though!!
Such a beautiful place.