prohodna cave bulgaria |
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| navigate by keyword : adventure ancient background balkans big bulgaria cave cavern ecology ecotourism entrance europe eye eyes famous formation geologic geology god gods hole inside karlukovo karst landmark landscape light mountain mysterious mystery mystic natural nature outdoor phenomenon prohodna rock sky speleology stalactite stalagmite stone stones tourism tourist travel underground wall |
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| It is nown as God`s eyes. Located near Karlukovo village |
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