The Welsh boy and Dunedin girl met in Taupo five years ago when he was travelling and she was home from the United Kingdom for a friend's wedding.
They met again on the other side of the world and now live in Cardiff, with their 3-year-old daughter Seren.
After her hen's party in Majorca had to be postponed for two weeks, as volcanic ash clouds grounded planes, they arrived in Dunedin in the wake of floods, to prepare for today's nuptials.
Despite travelling 18,000km for the wedding, they could not escape a Welsh influence, as 27 of their friends had come with them and their priest and photographer are of Welsh descent.
Along with whale watching in Kaikoura and skiing in Queenstown, a post-wedding event high on the must-do list is attending the final test match at Carisbrook on June 19, when New Zealand takes on Wales.
Mr Watts said the trip was perfect preparation for next year's Rugby World Cup.
He did not know which team would win, as both sides were plagued by injury, but hoped it would go down in history, not only as the last test at Carisbrook, but also as the first time Wales had beaten New Zealand in New Zealand.
