Bulgarian caves >> Cave Ponora
Cave Ponora
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Cave Ponora is a water cave in Milin Kamak mount, north of the city of Vratsa. Its total length is 3,172 m. The underground river, which flows through the cave, forms a series of narrow and long lakes. Their water flows into the picturesque Zhabokrak Karst spring. The most beautiful of the nature creations are the Big Waterfall, the Castles and the Nuclear Explosion.
