Hikurangi Marine Reserve is a marine reserve off the coast of the Kaikoura District, in the Canterbury Region of New Zealand's South Island. It is the largest and deepest marine reserve in New Zealand. The reserve is covers an area of 10,416 hectares south of the township of Kaikōura. It includes part of the Kaikōura Canyon, a 1000 metre deep side branch of the Hikurangi Trench. It includes a rocky coastline of greywacke boulder and bedrock reefs. Panau Island and two smaller islets are located offshore.