Tag Archives: ancestral Waikato River

Class 5; Geology for Kayakers. Huka Falls

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Huka Falls, New Zealand

Kayaking huka falls

 

Huka Falls, tourist attraction and Class V+ drop, is either a kayaker’s nightmare or their delight.  The falls themselves are not technically difficult but with an average 160 cumecs tumbling through a 15m gap, they are a bit daunting.  Huka Falls is the first major cataract on Waikato River, about 8 km downstream of its headwaters (Lake Taupo ).  Flow is controlled by flood gates near Taupo township. Most kayaking is done in flows of 50-150 cumecs,, but anything over 130 cumecs is a bit gnarly.   The tourist viewing platform and bridge are close to the top of the falls. So any kayaker venturing through nearly always has an audience.

 

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Walking to Great Barrier Island

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A short hike to the beach 20,000 years ago

The Last Glaciation began about 110,000 years ago with massive expansion of ice-sheets in northern Europe, north Asia, North America and Antarctica.  The source of water for the ice-sheets was the oceans.  Based on geological mapping, dating of glacial deposits, and other physical evidence for ice movement it has been determined that the maximum extent of glacial ice from a global perspective occurred about 20000 years ago; this is referred to as the Late Glacial Maximum or (LGM).  Mapping also indicates that global sea-level was on average about 100m -120m below present sea-level. Continue reading

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