Packing for New Zealand requires preparation for "four seasons in one day." 1. Clothing: Layers are essential. Bring a high-quality waterproof rain jacket, sturdy walking shoes/hiking boots, and thermal base layers (merino wool is a local favorite). 2. Sun Protection: The UV rays in NZ are exceptionally strong due to low air pollution and a thin ozone layer; bring high-SPF sunscreen, a hat, and polarized sunglasses even in winter. 3. Travel Documents: An NZeTA (Electronic Travel Authority) or a valid visa is required for most nationalities, along with proof of a return ticket. 4. Biosecurity Readiness: NZ has strict biosecurity laws. You must declare all food, used outdoor equipment (like tents), and hiking boots. Ensure your boots are spotlessly clean of dirt/seeds before arrival, or you may face a fine or have them confiscated. 5. Electronics: A Type I power adapter (the same as Australia) for the 230V/50Hz grid. Finally, bring a sense of adventure—you will likely be spending a lot of time outdoors in some of the world's most stunning landscapes!