For many people, the ocean is generally considered to be the planet’s last true final frontier. More than just a repository for sunken ships, hidden treasure, and sharp-toothed leviathans, the ocean’s depths are still mostly unexplored by man—and thus all the more mysterious.
But it’d be a huge mistake to ignore the mysteries that lie beneath the surface of more familiar—and shallow—bodies of water. In fact, lakes all over the globe have secrets of their own. You just have to know where to look!
In Austria and China, for instance, there are two lakes that are so unusual that they draw tourists all year round. When you see what they have to offer, you just might book your next flight!