Voulismeno Aloni

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Voulismeno Aloni (Βουλισμένο Αλώνι, Greek: sunken threshing floor) is a sinkhole located on the foot of Strouboulas mount, next to the old national road, at the 14th kilometer from Heraklion to Rethymnon, in the island of Crete (35°19′48″N, 25°01′05″E).

It is a ground subsidence with a circular shape up to 90 meters in diameter. Its slopes are steep and vertical reaching up to 60 meters of height from the bottom of the formation. Descent into the interior is feasible on foot from the South-West side following a certain pathway.

Geologists believe that it is a sinkhole, formed by the depression of an underground cave, during the Pleistocene period.