He told the New Zealand Herald he received Internet access for about 15 minutes before the transmitting balloon he was relying on floated out of range.
"It's been weird," he told the newspaper. "But it's been exciting to be part of something new."
Google's ultimate goal is to have a ring of balloons -- each the length of a small light aircraft when fully inflated -- circling the Earth, ensuring there is no part of the globe that cannot access the web.
But Richard DeVaul, chief technical architect at Google (x), cautioned that "it's awfully too early to think about covering the entire planet."
The next step might be to make a ring of balloons around the same latitude as New Zealand, he added, to extend coverage to countries such as Australia, South Africa and Argentina.
"We think hundreds of balloons, maybe 300 or 400, might be necessary to complete that ring," DeVaul said.
Google did not say how much it was investing in the project.
"The idea may sound a bit crazy -- and that's part of the reason we're calling it Project Loon -- but there's solid science behind it," Google said, but added: "This is still highly experimental technology and we have a long way to go."