The Dead Sea has attracted visitors for thousands of years who come to float in its salty waters and reap its reported health benefits. But the attraction's days could be numbered after experts discovered the sea's water level is dropping by an average of one metre every year. The drop in levels is thought to have been caused by more water flowing out of the sea than into it from the Jordan River. Scroll down for video The water level of the Red Sea is dropping by an average of one meter per year. It is being carefully monitored by the Israeli Geological Institute of Limnological Research, which uses a small research buoy (pictured) floating in the centre of the sea to measure its depth
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First measurements were taken in 1927 - water levels have declined since
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They are monitored by Israeli Geological Institute of Limnological Research
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Research buoy is positioned in the centre of the sea near Ein Gedi resort
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Dead Sea’s water level has dropped  131ft (40 metres) since the 1950s
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Decline blamed on large reduction of inflowing water from the Jordan River
The Dead Sea, known as the Sea of Salt, separates @placeholder and Jordan.
The Dead Sea, known as the Sea of Salt, separates Israel and @placeholder.