Borough Market has evolved over the years (almost 1000, in various spots in London) from a wholesale market of fruits and vegetables into a wholesale and retail market. While you can still buy a kilo of fresh peaches, there are a number of food stalls where you could get an excellent breakfast or lunch. The retails market is open Wednesdays and Thursdays from 10 - 5, Friday from 10 -6, and Saturday from 8 -5. The wholesale market is open weekday mornings from 2 am to 8 am. You might not be able to shop, but there would be excellent photo opportunities if you're up that early! The Market is on the South Bank of the Thames, right beside the Southwark Cathedral. Take the Jubilee or Northern line to the London Bridge stop and you're there! Bring an appetite!