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Outlook > 2007 > April
Experience stunning scenery
FLYING into Christchurch International Airport, visitors get a
spectacular introduction to the diversity and beauty of the Canterbury
region.
The bird's-eye views of the patchwork-like Canterbury Plains and how
they interact with New Zealand's largest and most picturesque mountain
range, the Southern Alps, offer an unforgettable welcome.
Spanning 190km, the Canterbury Plains are New Zealand's largest area of flat land at low altitude.
Converted from indigenous tussock into productive farm land by the
early settlers in the mid 19th century, they represent a cornerstone of
the Canterbury economy.
To the east of the plains is the South Pacific Ocean, while the western
boundary is marked by the Southern Alps, extending 550km in a south
westerly direction from beyond Canterbury's northern border.
The beauty of the alps can be experienced by a visit to Aoraki Mount
Cook, New Zealand's highest peak, while living remnants of the ice age
in the form of spectacular glaciers are also within driving distance of
Christchurch.
The other major geographical feature of Canterbury is Banks Peninsula,
a cluster of volcanic hills on the eastern coast. About 10 million
years ago, this area was an active volcanic island. But after two
eruptions, the sediment brought down by the glaciers and rivers of the
Southern Alps enlarged the Canterbury Plains until the island became
joined to the mainland.
The two volcanoes, which are now the Akaroa and Lyttelton harbours,
left what have become sheltered valleys, cliffed headlands and dramatic
seascapes from throughout the peninsula.
While the Canterbury Plains, the Southern Alps and Banks Peninsula
illustrate the geographical diversity of the region, there are also
other features scattered throughout that contribute to this uniqueness.
At the top of this list is the Cave Stream Scenic Reserve. About two
hours west of Christchurch, a 362 metre long cave within the reserve
would have to be one the most outstanding natural features in
Canterbury.
The cave is in the Castle Hill basin, named from the castle-like forms
of the prominent limestone outcrops. The cave, which takes an hour to
walk through, has formed from the dissolving of limestone over time.
It is not only the unique nature of the geography and landscape that
sets the region apart, but some of the extraordinary engineering feats
that have been accomplished with it.
This stretches back to the building of the Otira Tunnel in 1923. The
structure was built to create a rail link between Canterbury and
Greymouth on the western side of the Southern Alps.
Built with astounding accuracy in the days before lasers and other
technology, the 8529 metre tunnel was the longest in the British Empire
at the time.
In the following decade, another major engineering feat began with the
opening of the Waitaki dam and power station. The Waitaki River is
right on Canterbury's southern boundary and its water is now used by
eight hydro power stations. These, coupled with another one on nearby
Lake Manapouri, now generate around 30 per cent of New Zealand's
electricity.
Although these examples only highlight a fraction of the geographic
diversity of the region and how it has been used, they do show that
Canterbury has a special character like no other part of New Zealand. |