Native name: Maunganui | |
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Geography | |
Location | Auckland |
Coordinates | 36°29′24″S 174°43′34″E / 36.49°S 174.726°E |
Adjacent to | Mahurangi Harbour |
Area | 68,000 m2 (730,000 sq ft) [1] |
Length | 386 m (1266 ft) |
Width | 230 m (750 ft) |
Highest elevation | 40 m (130 ft) |
Administration | |
New Zealand |
Casnell Island is an uninhabited island located in the Mahurangi Harbour, Auckland Region, New Zealand.
The island is located in the Mahurangi Harbour at the mouth of Te Kapa River. [2] It is accessible from Scotts Landing at low tide via a causeway. [3] It is the largest island found in the Mahurangi Harbour. [1]
The island is formed from Waitemata Group sandstone and mudstone. [1]
Much of the island is dominated by kanuka forest, with areas of pōhutukawa, kōwhai and grassland. [1]
The island was a pā site in the 16th century, [3] serving as a defensive fort at the entrance of the Mahurangi Harbour. [1]