Crate Day

Crate Day is an unofficial holiday in New Zealand, held on the first Saturday of summer, which is the first Saturday of December in New Zealand. It was started by a group of University students in Christchurch in 2005, who lived in a flat on Wairakei Rd. Usually celebrated by purchasing a "swappa crate" of beer and drinking it with friends, the event has grown in popularity over the past decade leading to a number of arrests and injuries.
Many alcohol related business have promotions for the event and numerous local councils enact liquor bans during the weekend.