The Government has cancelled all gatherings and events where people might get together. It doesn’t matter if the event is inside or outside; this means even small family gatherings or parties like birthdays and weddings are not allowed.
During alert level 4, you should only spend time with the people you live with and your essential support workers. You need to stay two metres away from everybody else, even people you know. Two metres is about the same length as your bed.
If you are an essential worker, you can still go to work.