Israel's researchers say they have discovered the world's longest saline cavity.
Passages 10 km and chambers inside Malham Cave overlooking the Dead Sea were mapped over two years.
The desert place was close to where, according to the name of the Bible, Lot's wife was transformed into a salt bed.
Rain is expected to extend Malham longer over time, the researchers said.
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This happens when rainwater flows down cracks in the surface, dissolves salt and creates half-horizontal channels along the road that flows down towards the Dead Sea.
Part of the Malham Cave running through Mount Sodom, Israel's largest mountain, had already been mapped in 1980 & # 39; s.
Two years ago, Yoav Negev of Israel's Cave Explorers Club decided to conduct the study and set up a team of scientists and cave experts.
During a lunch break in the cave, Boaz Langford of the Hebrew University of Jerusalem said explorers felt their pasta lacking spices.
"So we just broke some salt out of one of the rocks and used it," he said.
Malham has taken a 13-year record since 2006 at the Cave of the Three Nudes, a 6.85-km (four-mile) saline cave in Iran's Qeshm Island , the researchers added.
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