Learnz 2001

Click for Great Barrier Island homepage

Background

Great Barrier homepage 

 

An Island Environment

Biodiversity

Geology and landforms

Outer Hauraki Gulf

Offshore islands

Wetlands

 

People and the Environment

Cats

Conservation

Meet DoC's Rebecca Stanley

European settlements

Goats

Kauri - a natural resource

Maori history

Minerals and mining

Shipwrecks

Weeds and plant pests

Whaling

 

Threatened Species

Black petrel pics

Black petrel facts

Brown teal pics

Brown teal facts

Chevron skink pics

Chevron skink facts

Kauri

Kereru

What is a lizard?

Geckos

Skinks

North Island kaka

Endangered plants

Updated: August 30, 2001

 

The Outer Hauraki Gulf

The western side of Great Barrier has rugged hillsides and rocky beaches - Image: DoC
The western side of Great Barrier has rugged hillsides and rocky beaches

 

Aotea means "white cloud" which is typical of the cloud cover over the island - Image: Heurisko Ltd
Aotea means "white cloud" which is typical of the cloud cover over the island

There are over 50 islands in the Hauraki Gulf, some of which DoC manage as island reserves such as Little Barrier Island.

Of all the islands in the Gulf, Great Barrier is the largest. It is 15km at its widest point and 40km long. It comprises a land area of 285 square km. Great Barrier includes 23 islands plus many islets and rock outcrops.

The islands of Great Barrier lie across the entrance to the Hauraki Gulf. In 1769 Captain Cook named the islands the Barrier Isles because they shelter the inner gulf from the easterly seas and stormy weather. Maori knew the islands as Aotea (White Cloud).

Great Barrier Island is 17km from Coromandel Peninsula and is separated by the Colville Channel. It is approximately 100km to downtown Auckland. Hirakimata is the highest mountain at 621m and is located in the centre of the island.

Great Barrier Island is subject to two high and two low tides per day. The total water level changes at high and low tides are between 1.8 and 2.4m. The water temperature ranges from a high of 21ºC in summer to a low of 12ºC in winter conditions.

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