But Holley played the incident down. "I was gone before it all really kicked off but it is Queenstown at Winter Festival so people having a few drinks and partying is expected," she told the Herald on Sunday.
Skyline general manager Lyndon Thomas said the company was considering cancelling next year's $75-a-head event, which is popular with local accountants, lawyers, real estate agents and hospitality workers.
Queenstown Festival organiser Simon Green said the future of the event was now in doubt.
"There was a lot of childish stuff going on from a small minority of locals," said Green. "But this kind of behaviour can't be condoned and we will back Skyline's decision either way about whether they will hold it again or not."