It was opposite Blacknest Gate - but think it is called something else now and has been for years. Anyhow, I learnt to ride there when it was run by a lovely family - two sisters and their husband, did the whole mucking out for free rides thing and eventually had my own pony there. That was absolutely yonks ago though and am now a lapsed rider. Got back into it about two years ago and was riding regularly, but then got ill with pneumonia and then a hideous post viral infection that keeps rearing its head, so haven't got back in the saddle for a while now. Miss it desperately, but it's so blooming expensive where I am (London) and money's a tad tight, so I'm probably doing myself a favour by not picking it up just yet! Still, can live vicariously via this thread
(Ooh - just found it on the web - http://www.abony.co.uk/ - the box in the corner of the yard was mine!
I remember Blacknest Gate... not the yard though. I have been out of the saddle too for about 4 years now though still am lucky enough to live on the doorstep of the Great Park - cannot wait to get back to it!