You need an ETA for New Zealand if you have a Saudi Arabian passport

Travelers need a travel authorization to visit New Zealand for Business or Tourism. Visa-exempt visitors entering New Zealand must obtain an Electronic Travel Authorization (eTA). Travelers can submit the eTA application online. Once the application is approved, travelers receive their eTA confirmation electronically. An eTA is electronically linked to a passport and valid for up to 2 years. If travelers receive a new passport, they must apply for a new eTA. A valid eTA is required to board the flight. If the eTA is expired or doesn’t match the traveler’s passport information, travelers will not be able to board their flight. Travelers visiting New Zealand can work remotely as digital nomads for employers located outside of New Zealand. This applies to both Visitor visa recipients and New Zealand eTA holders. Travelers cannot work for New Zealand employers, provide goods or services to people or businesses in New Zealand, or perform work requiring physical presence at a New Zealand workplace.