Mine Bay Maori Rock Carvings by artist Matahi Whakataka Brightwell: Ngatoroirangi was a great and powerful high priest with the mana to carry the most powerful of deities. The rock alcove became the canvas for one of the most extraordinary contemporary carvings in NZ. Surrounded by smaller sculptures depicting tupuna (ancestors) an kaitiaki (guardians), the carving towers 14 metres above the water of Lake Taupo.