There was more than champagne flowing at last weekend's Veuve Clicquot Polo Classic on Governors Island in New York City. Celebs including Naomi Watts, Isla Fisher, and Nicky Hilton showed up in flowy Summer dresses and skirts for the annual polo fundraiser. The event, organized to raise money for Hope Help and Rebuild Haiti, had polo star Nacho Figueras, Marc Jacobs and Donna Karan as fashionable co-host to master-of-ceremonies Hugh Jackman. The ladies' choice of easy florals, sundresses, and hats are casual enough for a day in the sun, but classy enough to warrant a popping of champagne. Seriously, how cute is Naomi Watts in her white dress and oxfords? Click the slideshow to see each Summer-perfect look, as well as one very dashing bonus picture of Nacho Figueras (in a lesson on how Summer menswear should be done).