Ngāi Tahu is a Māori iwi (tribe) based in the South Island of New Zealand. They are one of the largest iwi in the country and have a rich cultural heritage, including traditional stories, language, and customs. Ngāi Tahu's ancestral lands extend from the northern part of the South Island to the southern coast, encompassing various landscapes and resources. The iwi has a significant role in New Zealand's history, particularly regarding the Treaty of Waitangi, which was signed in 1840. Ngāi Tahu has worked to address historical grievances and promote their rights, culture, and economic development through various initiatives and partnerships with the government and other organizations.