Yes, it is possible for New Zealand citizens to extend the validity of their visa while in Laos if they wish to stay beyond the initial visa-free period or the duration granted on a visa on arrival. However, the extension process and requirements may vary, and it's important to follow the guidelines provided by the immigration authorities in Laos.
To extend the validity of their visa, New Zealand nationals must normally apply for an extension at the Department of Immigration or the nearest immigration office in Laos. The particular procedures and documentation required for the extension may differ based on the kind of visa and the sought term.
To give enough time for processing, it is best to begin the extension procedure long before the first visa expires. It's also a good idea to check with the immigration authorities or a local immigration lawyer or travel agency in Laos for the most up-to-date information on the extension procedure, requirements, costs, and any other special restrictions that may apply.