If you are traveling to New Zealand from outside of the country, you should be aware of the passport, VISA, and immunization requirements before planning your travel. If you do not meet the requirements, you will be denied entry into New Zealand. This is not something that I would wait until the last minute to take care of as you might not have enough time to sort out any issues at the last minute should you run into them.
To assist you in making sure you meet the necessary requirements to visit New Zealand, I have outlined all of the requirements you need to be concerned about in this article. Furthermore, I have also created the handy checklist I linked below for you to use as a point of reference and to track all of the requirements as you meet them.