This article is about the New Zealand city. For the fish genus see Opua (genus) Opua is a locality in the Bay of Islands, in the sub-tropical Northland Region of New Zealand. It is notable as the first port for overseas yachts arriving in the country after crossing the Pacific Ocean. In the original 1870s plans for the town, it was named Newport. The town of Paihia is nearby, and the small settlement of Te Haumi is in between.