Ordynskaya Cave is the longest underwater cave in Russia, second longest underwater cave in Eurasia and the world's longest underwater cave in gypsum.See the incredible pictures inside:
The world's longest underwater cave
by Adil | 9:10 PM in around the world, russian, underwater cave, underwater cave system, underwater caves, world's longest |
Ordynskaya Cave is the longest underwater cave in Russia, second longest underwater cave in Eurasia and the world's longest underwater cave in gypsum.See the incredible pictures inside:
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