Around 80 guests from all aspects of the industry gathered for a drinks reception in the shadows of the iconic tower, followed by lunch in the 700-seater structure.
Earlier this year, Historic Royal Palaces awarded The Ultimate Experience a six-year contract, to provide a temporary structure in the Tower of London Moat for summer and winter parties until 2017.
The contact excludes Summer 2012, for which Historic Royal Palaces is still considering a range of event opportunities at the attraction.
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