A 32-year-old man was arrested after one officer died and another was seriously injured in the incident in the South Island city of Nelson.
The last crossings of the year took place on December 29, when 291 people made the journey from France in six boats.
A software engineer has completed his year-long challenge of doing 300 press-ups every day in memory of his mother who had multiple sclerosis (MS), raising more than £10,000 for charity.