Or alternatively how about an afternoon/evening on a Gin Journey tour sampling some diffent gins with a distillery tour too?
http://www.ginjourney.com/
If you book a London one you may get Bugpowderdustjnr as your guide, he really does know his stuff when it comes to other spirits and gin (hes worked a few years in the gin industry and recently did a 3/4 month North and South American trip around many distilleries of varied spirits, this is his site of their trip and places he visited, they are still editing down more episodes, http://www.theworldsip.com/)