Between 1840 and 1936 nearly 117,000 Scots and around 100,000 Irish made the long journey from their homelands to settle in New Zealand.
Many of their descendants have maintained a strong sense of cultural connection to those roots. Celine Kearney sought to understand their experiences, and has woven it into a book called Southern Celts.
She's of Irish stock, spoke to a variety of people with strong ties to Ireland and Scotland - from a kiltmaker and Gaelic teachers, to pipers and poets, writers and historians.
She speaks with Kathryn, along with one of the book's interviewees - Michael Fraser Milne, owner and director of Whiskey Galore.