Atlantida

Atlantida is a karst cave in Ukraine, most famous for its unusual geology, rare formations, and pristine condition. It is located at the bank of the river Zbruch in Kamianets-Podilskyi Raion of Khmelnytskyi Oblast, close to Zavallya village. The cave is 2525 m long and 18 m deep, with 4440 m² area. Subordinated to the Tourism and Excursions Council of Khmelnytskyi Oblast, the cave is a part of the Podilski Tovtry National Nature Park.

Atlantida is the only cave with horizontal three-level structure within Ukraine. This structure bases on a system of wide and high galleries of the lower level, formed by powerful localized underground flows. On the same level in the gypsum stratum lies a labyrinth of downgoing passages called "cellars".