trails inside the postojna cave park second longest system country one its top tourism sites caves |
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navigate by keyword : ancient attraction beautiful building castle cave cavern caving cliff dark day deep defend europe formation fort fortress geologist geology grotto historic history inside interior jama karst landmark landscape limestone medieval mineral mountain national nature old postojna renaissance rock secret slovenia speleology stalactite stalagmite stone tourism tower travel underground wall water |
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Trails inside the Postojna cave park. It is the second-longest cave system in the country. One of its top tourism sites. The caves were created by the Pivka River |
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