Advice needed
My niece is visiting Chiang mai first week of January, flying from New zealand using a NZ passport
Wanting to stay 4-5 months, however after the first two months she plans to fly over to S Korea for one month then return to CM for 2 months.
She is my niece,17 years old
What is the best visa approach?
TLDR : Answer Summary
A 17-year-old NZ passport holder visiting Chiang Mai for 4-5 months should consider a Single Entry Tourist Visa before leaving New Zealand, which grants a 60-day stay in Thailand. This visa can be extended for an additional 30 days. Alternatively, upon returning from a month in South Korea, she can enter Thailand again under the visa exemption rule, receiving another 30 days, which can also be extended for an additional 30 days. Thus, careful planning is advised to conform to her travel itinerary.