Just to update the last message, Starkers is now on the first Friday of every month at The Arches, Southwark Street. It really is worth a visit, straight, gay, bi, male, female all very welcome. Last week there were about 350 people dancing, socialising etc - all naked of course.
Hi - the best place to go nude sunbathing in North London is Highgate Ponds (Mens Pool)
Obviously if you just want a relaxed evening naked there's always Club Starkers on the 4th Saturday of each month - South Central - look it up for further details - it's a great night out.
I'm always up for social entertaining nude in Highbury as well - so get back to me if you fancy it!