Mr Black Espresso Martini Fest

London is the home of the famous coffee cocktail, so where better to dedicate three days to knocking back them back. This long weekender hosted by coffee liqueur Mr Black sees top bars across the capital serve their own takes on the class cocktail for just £6 a pop. All you need to do to get a piece of the caffeine-laced action is download a digital pass, which is free for the first time.