Bride-to-be Lois Sims, of Ida Valley, said Queenstown was a good place to have a hen party.
"Queenstown's great because we could make a day of it. We did a winery tour. So we hired a van and spent the afternoon touring around wineries then went out on the town," she said.
The group of 10 dressed up in silly outfits and did a pub crawl.
Her fiance took his friends to Glenorchy for a jet-boat ride on the Dart River for his stag party.
The couple met in Queenstown, before moving to England.
They returned to get married in the Ida Valley this month, and they plan to settle in Queenstown.
Queenstown police's liquor licensing sergeant, Keith Newell, said hen and stag parties were a regular sight in Queenstown bars on Friday and Saturday nights.
"We usually come across one or two at least every weekend.
As a rule, they are all in high spirits but don't cause too much trouble.
Occasionally, they get up to high jinks and need a friendly word, but usually it's just good sport," he said.
The parties often involved a dip in the lake, he said.
A memorable stag party was a husband-to-be getting carried around in a coffin by his friends, in November last year.
Pig and Whistle bar manager Edwina Gould said hen and stag parties were generally good for business.
"We are used to having them here. They are great. A crowd attracts a crowd. We have karaoke every Saturday night and it's the hens and stags that get up and have a go. It creates an atmosphere," she said.
It was difficult to make sure some in the party were not getting too intoxicated.
"It's hard policing the drinking, especially with stag parties. They buy in rounds and we just have to try to refuse alcohol to those who are getting too drunk."
She had witnessed hen and stag party members getting up to "crazy stuff" outside the bar.
One husband-to-be was attached to a power pole for more than an hour dressed in a "mankini", while another was bundled into a trailer and driven around town.
