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Exploring the world’s largest gypsum cave: Optimistychna and Atlantyda

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The Wandered takes you underground to Ukraine, home to Optimistychna cave, the world’s largest gypsum cave, and Atlantyda cave, known for its unique formations. Located in the Ternopil region, these caves are natural wonders and centers for scientific research and speleotourism.


How were these caves formed?

These caves formed naturally over millions of years through karstification, a process where water dissolves gypsum, creating vast networks of tunnels and chambers. The caves are purely the work of nature, making them one of Ukraine’s most fascinating geological treasures.


Gypsum mining in the region

Although there is extensive gypsum mining in the Ternopil region, no mining occurs in the Optimistychna or Atlantyda caves due to their protected status as natural monuments. The nearby gypsum quarries supply materials for construction products such as plaster and cement, used both locally and exported to Europe.


Scientific and tourism developments

These caves are critical for scientific research, with ongoing studies in geology, hydrology, and biology. Plans are in place to expand speleotourism by offering specialized routes for visitors, increasing awareness of the caves' ecological importance while preserving their integrity.


Getting to Ternopil

To visit the caves, your journey starts in Ternopil, a major city in western Ukraine. Ternopil is well-connected via:

  • Train: The Ternopil railway station offers connections from Kyiv, Lviv, Kharkiv, and Odessa.
  • Bus: Ternopil’s bus station provides routes to and from nearby cities.


How to get to Optimistychna cave

  • Location: Near Korolivka, about 50 km from Ternopil.
  • Nearby villages: Korolivka, Bilokrynytsya, Zbruchanske.
  • Transport: Buses from Ternopil travel to Korolivka, or you can drive in about an hour.


How to get to Atlantyda cave

  • Location: Near Zavallya, around 90 km from Ternopil and 20 km from Kamianets-Podilskyi.
  • Nearby villages: Zavallya, Vilkhovets, Okopy.
  • Transport: Buses run from Ternopil to Kamianets-Podilskyi or Zavallya, or you can drive.


Accommodation options

  1. Ternopil: Offers a range of hotels, hostels, and apartments for various budgets.
  2. Nearby villages: Private homes and guesthouses are available for those seeking a quieter stay closer to nature.

For convenient booking, use Your Price Booking to find the best deals.


Cave coordinates

  • Optimistychna cave: 48.8567, 25.6406
  • Atlantyda cave: 48.6072, 26.0122



Optimistychna and Atlantyda caves offer unparalleled adventure and research opportunities. Their proximity to Ternopil and tourist-friendly infrastructure make them accessible, while their natural beauty ensures a memorable experience for anyone exploring Ukraine’s hidden wonders.