Days out with teens in October half term

[RhythmNBooze]

Anyone know of any teen friendly events going on in London or thereabouts during October half term? I'd like to take my dds for a couple of day trips out. We're in Hertfordshire.

If they're Harry Potter fans, this could be worth a look...www.bl.uk/events/harry-potter-a-history-of-magic

Thanks Ricekrispie - I would certainly find that interesting.