In a dimly lit room, the wooden floor creaks and a fire crackles in the corner fireplace as a business-mannered bartender fills dimpled glass mugs with tepid cask ale. This is the scene in a typical London pub – and could accurately describe any one of the thousands of pubs in the city (yes, thousands). Classic pubs are a staple in London; a throwback to a bygone era that remains oddly fashionable in the present-day metropolis. (Read about our Classic Pub Crawl along the River Thames.) However, there is an alternative beer scene brewing in London: small craft breweries are opening throughout the city for microbrew consumption. Differentiating themselves from characteristic London pubs, the small batch breweries are often informal and industrial. Determined to get a good taste of the burgeoning scene, we joined hipsters and beer lovers for a self-guided London Craft Beer Crawl on the Bermondsey Beer Mile.