In reply to Ciderslider:
Hi mate, there's a very cheap and cheerful campsite between Gardoms and Birchen edge called the Eric Byne memorial campsite. There is always space here when everywhere else is full and there's a pub within walking distance.
It's the cheapest campsite in the area too.
It's a ten minute walk from where you park the car (at the pub) and you'll want a headtorch with you for the stumble back to the tent