Underground Ukraine: Caving in the Optymistychna Cave System
Deep beneath the rolling hills of western Ukraine lies the Optymistychna Cave System, one of the world’s longest gypsum caves. Located near the village of Korolivka in the Ternopil Oblast, this subterranean marvel stretches over 260 kilometers, offering a thrilling adventure for explorers. Known for its intricate labyrinths, crystal formations, and eerie beauty, caving in
