Riwaka River
The Riuwaka River, formerly known as the Riwaka River, is located in the Nelson region in the northwest of New Zealand's South Island. It flows for 20 kilometres, entering Tasman Bay / Te Tai-o-Aorere close to the town of Riwaka, 10 kilometres north of Motueka. The valleys of the Riuwaka and nearby Tākaka River form part of the pass over which the only road between Tasman Bay and Golden Bay runs. For part of its journey, the river flows underground through limestone caves, returning to the open air at ''The Riuwaka Resurgence''. This spot is popular with both holidaymakers and divers, as the water is always crystal clear, and is very cold even in the heat of mid-summer. The name of the river was officially altered to Riuwaka River in August 2014, following the Treaty of Waitangi settlements between the Crown and local iwi Ngāti Rārua and Te Atiawa o Te Waka-a-Māui Te Atiawa o Te Waka-a-Māui is a Māori iwi (tribe) in the upper South Island of New Zealand. Its rohe (tribal ...
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The Resurgence
Resurgence may refer to: *Resurgence (spring), spring discharge, where water comes from the ground *Resurgence (pest) of (usually agricultural) pests, due for example, to the misuse of pesticides *Resurgence (Dutch Revolt), the period between 1572 and 1585 in the Dutch Revolt *Risorgimento, meaning the Resurgence, Italian unification *The Resurgence (organization), a Christian ministry associated with Mars Hill Church and Mark Driscoll Media *''Resurgence! ''Resurgence!'' is an album by saxophonist David "Fathead" Newman recorded in 1981 and released on the Muse label.

Underwater Diving
Underwater diving, as a human activity, is the practice of descending below the water's surface to interact with the environment. It is also often referred to as diving, an ambiguous term with several possible meanings, depending on context. Immersion in water and exposure to high ambient pressure have physiological effects that limit the depths and duration possible in ambient pressure diving. Humans are not physiologically and anatomically well-adapted to the environmental conditions of diving, and various equipment has been developed to extend the depth and duration of human dives, and allow different types of work to be done. In ambient pressure diving, the diver is directly exposed to the pressure of the surrounding water. The ambient pressure diver may dive on breath-hold (freediving) or use breathing apparatus for scuba diving or surface-supplied diving, and the saturation diving technique reduces the risk of decompression sickness (DCS) after long-duration deep dives ...
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Rivers Of The Tasman District
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. Rivers are part of the water cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs, a ...
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Caves Of The Tasman District
A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word ''cave'' can refer to smaller openings such as sea caves, rock shelters, and grottos, that extend a relatively short distance into the rock and they are called ''exogene'' caves. Caves which extend further underground than the opening is wide are called ''endogene'' caves. Speleology is the science of exploration and study of all aspects of caves and the cave environment. Visiting or exploring caves for recreation may be called ''caving'', ''potholing'', or ''spelunking''. Formation types The formation and development of caves is known as ''speleogenesis''; it can occur over the course of millions of years. Caves can range widely in size, and are formed by various geological processes. These may involve a combination of chemical processes, erosion by water, tectonic forces, microorganism ...
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