The Royal Photographic Society
I joined the RPS a few months ago, not with any intention of obtaining an accreditation but simply to meet more like-minded photographers. I have not been disappointed.
Although not particularly cheap, especially if you join one of the many Special Interest Groups, the photographic walks, talks and exhibition days have proved extremely enjoyable. I have made new acquaintances and visited places I would not have gone to off my own bat.
The image below is from an organised walk at the Open University campus in Milton Keynes. Why not browse the RPS website HERE, it may appeal to you too.