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reef

A reef is a bar of rock, sand, coral or similar material, lying beneath the surface of water. Many reefs result from abiotic processes (i.e. deposition of sand, wave erosion planing down rock outcrops, and other natural processes), but the best known reefs are the coral reefs of tropical waters developed through biotic processes dominated by corals and calcareous algae. Artificial reefs (e.g. shipwrecks) sometimes have a role in enhancing the physical complexity of featureless sand bottoms, in order to attract a diverse assemblage of organisms, especially algae, and fish. Earth's largest and most famous reef is the Great Barrier Reef in Australia, at a length of 2,300 kilometres.
Underwater world. - Mysterious underwater landscape.
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Underwater world.

Added week ago by Grażyna

121

Underwater world. - Mysterious underwater world.
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Underwater world.

Added month ago by Grażyna

84 2

Aquarium - colorful jigsaw puzzle
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Aquarium

Added month ago by andi

21

Aquarium - colorful jigsaw puzzle.  The best puzzle zone wit animals.  The best puzzle zone wit animals.
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Aquarium

Added month ago by andi

48

Underwater world. - Mysterious underwater world.
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Underwater world.

Added 2 months ago by Grażyna

67

Vietnam. Coral reef. - Vietnam. Coral reef.
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Vietnam. Coral reef.

Added 2 months ago by Zeta

46

Landscape - colorful jigsaw puzzle
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Landscape

Added 3 months ago by andi

134

CORAL REEF - coral reef, starfish, marine fauna,
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CORAL REEF

Added 3 months ago by sandra

69

Cottage on the islet. - Cottage on the islet on the sea.
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Cottage on the islet.

Added 3 months ago by Zeta

21

CORAL REEF - coral reef, sea anemone
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CORAL REEF

Added 3 months ago by sandra

122

Maldives - beautiful landscape or Maldives
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Maldives

Added 3 months ago by zuzia

133

CORAL REEF - ocean, coral reef, marine fauna
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CORAL REEF

Added 3 months ago by sandra

173 1

CORAL REEF - coral reef, underwater life, colorful fish
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CORAL REEF

Added 3 months ago by sandra

254

CORAL REEF - coral reef, ocean, underwater world
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CORAL REEF

Added 3 months ago by sandra

334

BAJKOWY VIEW - Vacation, rest, sightseeing
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BAJKOWY VIEW

Added 3 months ago by Ada

44

BAJKOWY VIEW - Vacation, rest, sightseeing
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BAJKOWY VIEW

Added 3 months ago by Ada

58

atoll on the ocean - sea ​​landscape, atoll, coral reef
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atoll on the ocean

Added 3 months ago by sandra

66

CORAL REEF - coral reef, marine fauna, ocean,
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CORAL REEF

Added 3 months ago by sandra

137

Lech, Vorarlberg - Lorem ipsum dolor sit amet
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Lech, Vorarlberg

Added 4 months ago by Ayla

37

Landscape - colorful jigsaw puzzle
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Landscape

Added 4 months ago by andi

95

Colorful fish - colorful fish puzzle
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Colorful fish

Added year ago by andi

89

Colorful fish - colorful aquarium puzzle
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Colorful fish

Added year ago by andi

35

Life of the ocean - colorful jigsaw puzzle
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Life of the ocean

Added year ago by andi

34

yards in the depths - depths
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yards in the depths

Added year ago by olka

29

Fluorescent anemone - Fluorescent anemone
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Fluorescent anemone

Added year ago by Ilona

78 1

Underwater world - colorful puzzle with fishes
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Underwater world

Added year ago by andi

281

Underwater world - colorful puzzle jigsaw
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Underwater world

Added year ago by andi

34

Aquarium - colorful puzzle jigsaw
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Aquarium

Added year ago by andi

291

Landscape - complicated puzzle
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Landscape

Added year ago by andi

50

Underwater life - colorful puzzle jigsaw
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Underwater life

Added year ago by andi

172

Płetwo-diver - colorful puzzle jigsaw
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Płetwo-diver

Added year ago by andi

101

Aquarium - cute fish in the aquarium
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Aquarium

Added year ago by andi

52