The Admiralty Group of islets consists of eight rocky outcrops within 2 km of the north of

Lord Howe Island Lord Howe Island (; formerly Lord Howe's Island) is an irregularly crescent-shaped volcanic remnant in the Tasman Sea between Australia and New Zealand, part of the Australian state of New South Wales. It lies directly east of mainland Po ...

. From south to north, these are: #Soldier’s Cap #Sugarloaf #South Island #Noddy #Roach Island #Tenth of June #North Rock #Flat Rock Roach Island is the largest, being about 15 ha in area, 800 m long and 86 m in maximum height, with a much-photographed 15-metre-tall tunnel at its northern end. Basalt lava flows are crossed by many

dikes Dyke (UK) or dike (US) may refer to: General uses * Dyke (slang), a slang word meaning "lesbian" * Dike (geology), a subvertical sheet-like intrusion of magma or sediment * Dike (mythology), ''Dikē'', the Greek goddess of moral justice * Dikes ...

. Vegetation consists of

grass Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns a ...

es,

sedges The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus ''Carex'' wit ...

and a few bushes. The islets are noted in spring and summer for nesting populations of

seabird Seabirds (also known as marine birds) are birds that are adapted to life within the marine environment. While seabirds vary greatly in lifestyle, behaviour and physiology, they often exhibit striking convergent evolution, as the same envir ...

s in greater numbers than anywhere on Lord Howe Island. These are mainly

sooty tern The sooty tern (''Onychoprion fuscatus'') is a seabird in the family Laridae. It is a bird of the tropical oceans, returning to land only to breed on islands throughout the equatorial zone. Taxonomy The sooty tern was described by Carl Linnae ...

s, masked boobies and brown noddies. Boat trips take visitors to Roach Island for a

bird colony A bird colony is a large congregation of individuals of one or more species of bird that nest or roost in proximity at a particular location. Many kinds of birds are known to congregate in groups of varying size; a congregation of nesting bi ...

experience.

References

Bibliography

* {{coord, -31.50, 159.07, type:isle_region:AU, display=title Islands of New South Wales Geography of Lord Howe Island

See also

References

Bibliography