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atoll

An atoll ( , , , , or ), sometimes called a coral atoll, is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely. There may be coral islands or cays on the rim. The coral of the atoll often sits atop the rim of an extinct seamount or volcano which has eroded or subsided partially beneath the water. The lagoon forms over the volcanic crater or caldera while the higher rim remains above water or at shallow depths that permit the coral to grow and form the reefs. For the atoll to persist, continued erosion or subsidence must be at a rate slow enough to permit reef growth upwards and outwards to replace the lost height.
seaside landscape - sea ​​landscape, ocean, lagoon
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seaside landscape

Added 2 months ago by sandra

51

Tropical atmosphere. - Tropical atmosphere. Islands.
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Tropical atmosphere.

Added 3 months ago by Zeta

38

Tahiti. French Polynesia. - Tahiti. French Polynesia.
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Tahiti. French Polynesia.

Added 3 months ago by Zeta

130

BAJKOWY VIEW - Vacation, rest, sightseeing
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BAJKOWY VIEW

Added 3 months ago by Ada

51

Landscape - colorful jigsaw puzzle
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Landscape

Added year ago by andi

104

Landscape - complicated puzzle
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Landscape

Added year ago by andi

50

KAJMANYKAJMANY - KAJMANYKAJMANYKAJMANY
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KAJMANYKAJMANY

Added year ago by KAJMANY

258

MIDWAYMIDWAY - MIDWAYMIDWAYMIDWAYMIDWAY
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MIDWAYMIDWAY

Added year ago by MIDWAY

135

BERMUDYBERMUDY - BERMUDA BERMUDA BERMUDA
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BERMUDYBERMUDY

Added year ago by BERMUDY

85

TONGATONGA - TONGATONGATONGATONGA
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TONGATONGA

Added year ago by TONGA

55

Z serii krajobrazy - No i jak to nazwać?....normalne cuda natury:)
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Z serii krajobrazy

Added over a year ago by Marysia

303

Galapagos-morze - morze,wyspy,chmury,horyzont
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Galapagos-morze

Added over a year ago by wieslawa

153

Morze - powierzchnia - morze,błękit,woda,przezroczysta
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Morze - powierzchnia

Added over a year ago by wieslawa

91

Maalhosmadulu-Atoll - Luftaufnahme des Südlichen Maalhosmadulu-Atolls, Malediven
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Maalhosmadulu-Atoll

Added over a year ago by Baldiun

129