It is constituted of coral sand and reef rubble rising to a central ridge 5 metres (16 feet) above sea level.
The outer edge has a beach community of herbs and the sand ridge is dominated by low shrubs and Lepturus grass.
The island is a designated Preservation Area within the Howick Group National Park with no general public access.
[1] The island has been identified by BirdLife International as an Important Bird Area (IBA) because it has supported over 1% of the world populations of brown boobies (with up to 1000 nests) and lesser crested terns (up to 9800 breeding pairs).
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