An invitation masquerading as an airline ticket commanded Mile Montgomerie's guests to arrive under the arches of Southwark Bridge to his twenty-first, to be on time and 'to be dressed in beachwear'. Fifty tons of sand, a man-made river (equipped with boats for the ultra-keen), palm trees and a limbo pole further fostered the Caribbean illusion. The shoeless guests then swayed and drank to a calypso beat.