Otago in the context of "Lake Hāwea"

Seaweed, or macroalgae, refers to thousands of species of macroscopic, multicellular, marine algae. The term includes some types of Rhodophyta (red), Phaeophyta (brown) and Chlorophyta (green) macroalgae. Seaweed species such as kelps provide essential nursery habitat for fisheries and other marine species and thus protect food sources; other species, such as planktonic algae, play a vital role in capturing carbon and producing at least 50% of Earth's oxygen.

Natural seaweed ecosystems are sometimes under threat from human activity. For example, mechanical dredging of kelp destroys the resource and dependent fisheries. Other forces also threaten some seaweed ecosystems; for example, a wasting disease in predators of purple urchins has led to an urchin population surge which has destroyed large kelp forest regions off the coast of California.

The Southern Alps (Māori: Kā Tiritiri o te Moana; officially Southern Alps / Kā Tiritiri o te Moana) are a mountain range extending along much of the length of New Zealand's South Island, reaching its greatest elevations near the range's western side. The name "Southern Alps" generally refers to the entire range, although separate names are given to many of the smaller ranges that form part of it.

The range includes the South Island's Main Divide, which separates the water catchments of the more heavily populated eastern side of the island from those on the west coast. Politically, the Main Divide forms the boundary between the Marlborough, Canterbury and Otago regions to the southeast and the Tasman and West Coast regions to the northwest.

The New Zealand land confiscations took place during the 1860s to punish the Kīngitanga movement for attempting to set up an alternative Māori form of government that forbade the selling of land to European settlers. The confiscation law targeted Kīngitanga Māori against whom the government had waged war to restore the rule of British law. More than 1,200,000 hectares (3,000,000 acres) or 4.4 percent of land were confiscated, mainly in Waikato, Taranaki and the Bay of Plenty, but also in South Auckland, Hauraki, Te Urewera, Hawke's Bay and the East Coast.

Legislation for the confiscations was contained in the New Zealand Settlements Act 1863, which provided for the seizing of land from Māori tribes who had been in rebellion against the government after 1 January 1863. Its stated purpose was to achieve the "permanent protection and security" of the country's inhabitants and establish law, order and peace by using areas within the confiscated land to establish settlements for colonisation, populated initially by military settlers enlisted from among gold miners at Otago and the Colony of Victoria (Australia). Land not used by for military settlers would be surveyed and laid out as towns and rural allotments and then sold, with the money raised to be used to repay the expenses of fighting Māori. According to academic Dr Ranginui Walker, this provided the ultimate irony for Māori who were fighting to defend their own land from European encroachment: "They were to pay for the settlement and development of their lands by its expropriation in a war for the extension of the Crown's sovereignty into their territory."

The Maniatoto Plain, usually simply known as The Maniatoto, is an elevated inland region in Otago, New Zealand. The region roughly surrounds the upper reaches of the Taieri River and the Manuherikia River. It is bounded by the Kakanui Range to the north and the Rock and Pillar Range to the southeast. It has a harsh, dry climate, ranging from over 30 °C in mid-summer to -15 °C in mid-winter.

The region is sparsely populated, with the largest centres being Ranfurly, Naseby, Wedderburn and Oturehua.

The Alpine Fault is a geological fault that runs almost the entire length of New Zealand's South Island, being about 600 km (370 mi). long, and forms the boundary between the Pacific plate and the Australian plate. The Southern Alps have been uplifted on the fault over the last 12 million years in a series of earthquakes. However, most of the motion on the fault is strike-slip (side to side), with the Tasman district and West Coast moving north and Canterbury and Otago moving south. The average slip rates in the fault's central region are about 38 mm (1.5 in) a year, very fast by global standards. The last major earthquake on the Alpine Fault was in about 1717 AD with a great earthquake magnitude of M_w8.1± 0.1. The probability of another one occurring before 2068 was estimated at 75 percent in 2021.

The little penguin (Eudyptula minor) is the smallest species of penguin in the world, and originates from New Zealand. It is commonly known as the fairy penguin, little blue penguin, or blue penguin, owing to its slate-blue plumage and is also known by its Māori name kororā. It is a marine neritic species that dives for food throughout the day and returns to burrows on the shore at dusk. Eudyptula minor feathers are dense in melanosomes, which increase water resistance and give them their unique blue colour.

The Australian little penguin (Eudyptula novaehollandiae), from Australia and the Otago region of New Zealand, was initially described as Spheniscus novaehollandiae in 1826 and was later classified as Eudyptula minor novaehollandiae, a subspecies of the little penguin.

Dunedin (/dʌˈniːdɪn/ dun-EE-din; Māori: Ōtepoti) is the second-most populous city in the South Island of New Zealand (after Christchurch), and the principal city of the Otago region. Its name comes from Dùn Èideann ("fort of Edin"), the Scottish Gaelic name for Edinburgh, the capital of Scotland. The city has a rich Māori, Scottish, and Chinese heritage.

With an estimated population of 132,800 as of June 2025, Dunedin is New Zealand's seventh-most populous metropolitan and urban area. For cultural, geographical, and historical reasons, the city has long been considered one of New Zealand's four main centres. The urban area of Dunedin lies on the central-eastern coast of Otago, surrounding the head of Otago Harbour. The harbour and hills around Dunedin are the remnants of an extinct volcano. The city suburbs extend out into the surrounding valleys and hills, onto the isthmus of the Otago Peninsula, and along the shores of the Otago Harbour and the Pacific Ocean.

Central Otago is an area located in the inland part of the Otago region in the South Island of New Zealand. The motto for the area is "A World of Difference".

The area is dominated by mountain ranges and the upper reaches of the Clutha River and tributaries. The wide flat plateau of the Maniototo which lies between the upper reaches of the Taieri River and the Clutha's northern tributary the Manuherikia is also part of Central Otago.