The legendary Cross Camping, just S of Cambridge?
A place on the road between London and Eastbourne or Tunbridge... I can find out if near enough?
Lots of the best places are independents, like Cross Camping, so local. What part of the country do you live in?
Attwoolls in near Gloucester are brilliant. They have the an super range of tents and camping equipment and knowledgeable staff. With advance notice they even arranged to put a tent up that we were considering, and which we eventually bought.
------------- Aug 2017 St Martins Campsite, Scilly
Jul 2017 Trewan Hall, Cornwall
Jun 2017 Higher Kestle Farm, Cornwall
Mar 2017 Pitch Perfect camping Bath
Aug 2016 Brittany/Normandy:-
La Ferme Croas Men (near Morlaix)
Le Ranolien (Ploumanac'h)
Le Bois Courdrais (Cugen)
Chateau de Montfreville (Montfreville)
I called in here yesterday in Blackburn to pick up a camping table because i was passing and it meant I'd save postage. I was amazed at how much gear they had on display, including two floors of tents.https://www.outdooraction.co.uk/
It was like a sweet6shop to a kid, and the people working there were chatty and friendly.
Our tent display is on this weekend at the Cotton Arms near Nantwich - Karsten & ESVO's on display... see events for details or the Camping Travel Store website.
All the best...