Senior Sergeant Paula Enoka, of Queenstown, told the Otago Daily Times about 300 people gathered at a reserve at Sunshine Bay in a bid to avoid the ban.
While one person was given a pre-charge warning for disorderly behaviour, overall she had no major concerns.
``From a policing point of view it was really positive. It was pretty well behaved for such a large gathering of people and the vibe was good.''
An additional seven staff, from Invercargill and Dunedin, were brought in to assist and she confirmed police patrolled the area.
Crate Day, an unofficial event in which participants consume a crate of beer during the first Saturday of summer, has been held for several years.
The ban, in place from 10pm on Friday and ending at 8am yesterday, was introduced after concerns last year around the number of people congregating, levels of intoxication and issues over rubbish being left behind.
Snr Sgt Enoka was pleased people adhered to the ban and she confirmed officers did not have to confiscate any alcohol on Saturday.
However, on Sunday, police did stop six revellers who were queuing with open bottles and cans of beer while waiting to board a bus to the Cromwell races. Unopened items were confiscated from another four.