I could always use the netting that the army use in forests etc.
Not really alternatives - they don't like vans never mind sign written ones. There is this perceived problem on campsites that if you are towing a caravan with a van that you are a gypo.
I think it is also coupled with an element of I'm too far up my own a*se to have you park that horrible commercial vehicle anywhere near my lovely caravan.
I have been refused access to so many caravan sites that I have to spend a good day trying to get us on sites when we go away for work.
At one I was booked in and had paid and when we got there he did not want us on site -I argued and told him what I thought of him but then went on to spend about £600.00 on camp site fees somewhere else - his loss!!!
Rob