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The Stagnone Lagoon is a part of Mediterranean Sea in front of Marsala City (Trapani province, autonomous region of Sicily); the Lagoon is delimited by an island called Isola Lunga (formerly stinco di Capra) because of its geographical long form.
The water level in the lagoon varies from a few centimetres to a maximum of 2 metres. A peculiarity of the Stagnone is that, during summer, the water is always hot due to its low level and the lagoon conformation.