Describing his passion for reimagining objects with audacious wrapping and packaging, Christo said: "I don't like to talk on the telephone, I don't know how to drive cars... I'm interested (in the) real thing."
"The Floating Piers" cost 15 million euros ($16.7 million) to create but will be free to the public and is expected to attract 500,000 visitors by the time it closes.
It was funded as is typical for Christo's works by the sale of his blueprints and design models.
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Local businesses are already hoping to cash-in on the cultural phenomenon described by The New York Times as one of the "musts" of the year.
Michele Pescali, a bakery owner based close to the lake, has created a line of "Christo biscuits" for the occasion made of pastry covered with jam and orange peel reminiscent of the artificial pontoons.
Some visitors like Almut and Walter Horstmann from Germany arrived days early so as not to miss the final stage of installation.
"We wanted to see the construction work. We already saw the Reichstag, the wrapped trees in Basel, the wall of oil barrels, the Oberhausen gas holder in Germany," said Walter, 75.
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He described Christo's latest feat as "fantastic, with this mix of water, countryside, color and fabric".
And fans of the octogenarian genius need not fear that Christo is winding down.
He is now thought to be awaiting approval for two projects, one in the US and the other in Abu Dhabi.
Asked if he plans to hang up his welly boots and settle down, he said simply: "Artists do not retire, they die."
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