This week is scribed in every beer lover’s calendar, as Earl’s Court in London hosts the Great British Beer Festival. There are five days to try more than 450 British and international beers, ciders and perries.

And it’s not all beer bellies and beards. Beer expert Melissa Cole will host a series of women-only walking tours through the festival.

But navigating the country’s biggest celebration of all things beer can be bewildering - the Good Beer Guide’s latest satellite-navigation file will guide you to the most obscure hostelry in Britain but can’t help you in this air hangar of a building.