An hour-long morning boat cruise from Hahei Beach into the heart of the Te Whanganui-o-Hei Marine Reserve. Highlights included cruising along the 9 miles of volcanic coastline as well as out to several islands, and entering the Orua Sea Cave, the second largest sea cave in New Zealand, where we gazed up at the blowhole 80 feet above us. Along the way, our knowledgeable captain gave us a history of the significance of these waters to the Ngāti Hei people.