They visited remote glaciers, seal colonies and wineries, and swam with dolphins before reaching Akaroa, near Christchurch, and checking into a rural campsite.
But as Meghan took a shower, a 13-year-old boy crept into her stall and caught Meghan in the nude – forcing her, draped in a towel, to follow him through a site packed with holidaymakers to confront his horrified parents.
Meghan, 36, revealed her holiday adventure during a later interview ZM to promote her role in the TV drama Suits.
"When we got into the campsite, they had nice areas to take a shower and I'm washing my hair and I hear something," she said.
"I open the shower curtain and there's this 13-year-old boy who had crawled under the stall and was trying to steal my underwear.
"I grabbed a towel and I'm like, 'Where is your mother?!' I found his parents, who were mortified," she said. "I can laugh about it now but at the time I was so shaken up," she told the ZM breakfast show. "He was just a little prankster, he was harmless – probably bored to tears with his family."
Meghan is expected to return to New Zealand in October with Harry after they visit Australia for the Invictus Games.
