In the UK to my knowledge there aren't any dedicated bisexual clubs but there are quite a few cyclical bisexual events which run at particular clubs especially in and around London. We've been to a few and enjoyed ourselves immensely. You have to be open minded as all types attend (ages/shapes/sizes/races) and there tends to be a preponderance of men. When all the men are bi, however, this makes the sexual energy very different and extremely intense in group situations. I myself have had experiences of all male groups which have been great but when fully naked bi men and women get together the place virtually throbs with excitement as everybody gets involved. We recently had a bi group session at a club in a darkened steam room which made everyone wet and slippery; even as I write this my hands are shaking as my mind goes back in there. Hard cocks, wet pussy, breasts, buttocks, chests, nipples, balls, lips, mouths, thighs all flowing over and into one another. Its not for the faint hearted.