  Bluff Island Location in Antarctica | |
| Geography | |
|---|---|
| Location | Antarctica |
| Coordinates | 68°33′S77°54′E / 68.550°S 77.900°E /-68.550; 77.900 |
| Administration | |
| Administered under theAntarctic Treaty System | |
| Demographics | |
| Population | Uninhabited |
Bluff Island is an island lying 1 kilometre (0.5 nmi) south ofMagnetic Island and 4 kilometres (2 nmi) west of theBreidnes Peninsula,Vestfold Hills, inPrydz Bay,Antarctica. It was mapped from aerial photos taken by theLars Christensen Expedition, 1936–37, re-emapped by theAustralian National Antarctic Research Expeditions (1957–58) and so named because the south end of the island is marked by a steep cliff face.[1]
The island forms part of the Magnetic Island and nearby islandsImportant Bird Area (IBA), comprisingMagnetic,Turner,Waterhouse,Lugg,Boyd and Bluff Islands, along with the intervening islands and marine area. The site was designated an IBA byBirdLife International because it supports large colonies ofAdélie penguins totalling some 29,000 breeding pairs, based on 2012 satellite imagery.[2]
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