McDonald Islands, Volcanic island group in southern Indian Ocean, Australia.
The McDonald Islands are a small group of rocky volcanic islands in the southern Indian Ocean. The highest point rises roughly 230 meters above sea level, creating a landscape of dark rock and steep slopes rising sharply from the water.
An American sailor named William McDonald discovered these islands in 1854, about six weeks after nearby Heard Island was spotted. They have remained uninhabited since their discovery and are now managed by Australia as part of the Heard and McDonald Islands territory.
The islands serve as a research location for scientists studying marine biology, geology, and climate patterns in the southern Indian Ocean.
Visiting these islands requires special permits from Australian authorities and can only be reached by sea. The journey from mainland Australia takes about two weeks, making visits extremely rare and restricted mainly to scientific or official purposes.
During the 1990s, these islands roughly doubled their surface area due to intense volcanic eruptions that created new land. This growth demonstrates how geologically active and volatile this remote location remains.
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