The 2006 Hedgestock festival featured champagne, croquet and business-casual clad lawyers at a time when the City thought the boom would last forever. Emily Jupp finds out what it was like

A man wearing love beads leans against a Volkswagen campervan emblazoned with peace stickers and cheerful multicoloured flowers. Nearby, a haphazard queue begins, as tie-dye swathed hippies wait for a free massage next to a group playing ball games.