Yeah I have flown quite a lot at Hengistbury, the last time as I was packing up a young council park warden came up to me and said I couldn’t fly there, he was very polite and almost apologetic, I was flying from very close to the visitor centre so was pushing my luck I guess.
If you went up to the top at the far end overlooking the beach huts you would probably be ok. But as Dave said not a group, on your own you would be ok. I have flown from that spot and had a few people asking about it, so I explained there were CAA regulations we have to comply with and they were very friendly and even asked what a Mavic Pro would cost, so some interest was there.
Some nice shots to be had, would like to try to do some video, but haven’t tried much yet.