The secret of the underground

Dive with us into the mysterious underground of Slovakia. We will walk through unique sinter, charming aragonite or cool ice decorations, which offer us an unusual view of the secrets hidden in the depths of the earth. You will be enchanted by the diverse formations, corridors prepared by water, massive underground halls, narrow canyons with roaring waterfalls or crystal clear lakes. No wonder many of these caves have made it onto the World Heritage List. (distributor's official text) Watch The secret of the underground in HD free online now on MyWatchSeries with multiple servers and instant playback. Enjoy high-quality streaming of The secret of the underground and share your thoughts in the comments below!