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The Azure Window (Maltese: Tieqa Żerqa) is a Limestone natural arch on the Maltese island of Gozo. It is situated near Dwejra Bay on the Inland Sea. The formation, which was created after two limestone sea caves collapsed, is popular with scuba divers as well as tourists.

The arch is made of a limestone known as Lower Corallian. This is the oldest rock found on the Maltese islands. The rock, which is subject to erosion, gives Malta its distinctive coast while the Upper Corallian influences the landscape of the interior. Thickness of the limestone ranges from 23 metres (75 feet) near Fort Chambray on Gozo up to 207 metres (679 feet) around Marsaxlokk on Malta. The 28 metre (92 foot) high arch consists of yellow to pale-grey limestones comprising the remains of the marine organism.

The arch is disintegrating because large pieces of rock have begun to fall from the underside of the arch. The rate suggests that the arch will completely disintegrate within a few years. Its dangerous condition has led to warning notices being placed along the cliffs to stop people walking over the top of the arch. In April 2012 a large piece of rock was dislocated and resulted in the window being made larger and more unstable, as well as a reduction in its nearly perfect oblong shape.

(Source: Wikipedia)

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Additional Photos by Stephen Nunney (snunney) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 6159 W: 61 N: 17916] (80689)
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