Check here for details: http://www.bristolzoo.org.uk/bristol-zoos-big-night-out-0
Tickets are £15, £12 for zoo members, £13 concessions (I suggest people get their tickets early in advance as I suspect this will be very popular)
Looks like a night out with a difference. Personally I've always wanted to go on a bouncy castle,
But there is a bar for those who can't find their Inner Child.
Haven't worked out how to find each other yet so please post any ideas.