Posted on 09 Sep 2013
Hi Barry, you could try 'POPLARS' site at Sewerby nr Bridlington ( not a million miles from the Hull area)
this is a site I can personally recommend as we have stayed there several times, their web page makes no mention of trailer tents but for the cost of a phone call ,would it hurt to ask ?
they take caravans, tents and motorhomes so i'm guessing trailer tents would be okay too
http://www.the-poplars.co.uk/park.htmlgood luck