Diviačia Abyss

Located at the eastern edge of the Plešivská Plateau, northerly from the Vidová village. The depth is 123 m and it is the deepest abyss on the Plešivská Plateau. M. Erdös a V. Lysenko penetrated in 1964 from the previous bottom of 38 m to lower parts. The abyss is formed along distinct steep to vertical tectonic faults in the Mesozoic Middle Triassic pale Wetterstein limestones of the Silica Nappe. The abyss is formed by a system of changing corrosive shaft and breakdown dome spaces, decorated by rich and varied flowstone forms.

White to grey-white flowstone waterfalls and curtains were formed down to the depth of 36 m. Red-brown pisolites are on the walls in depths of 37 to 55 m. Yellow-brown flowstone waterfalls and curtains begin in 76 m. Dentritic clusters of red-brown pisolites prevail in the depths of 86 - 113 m. The northern branch has white flowstone layers on walls, stalactites, stalagmites and pool with water lilies and pearls as well as flowstone waterfalls and curtains from the 58 m’s depth. The bottom part is without dripstone decoration. On the bottom of two domes there are larger underground lakes.

Wild boar (Sus scrofa) skeleton covered with thin flowstone layer was found at the depth of 76 m. The second skeleton was found in depth of 86 m. There is a thick layer of guano inside and guano pots are formed in two places.

The bats have the dominant Lesser Horseshoe Bat (Rhinolophus hipposideros), important is also occurrence of the Greater Mouse-eared Bat (Myotis myotis). Except for them also the Greater Horseshoe Bat (Rhinolophus ferrumequinum) hibernates here. The abyss is home for rare cave invertebrates. A new species of pseudoscorpion Neobisium (Blothrus) slovacum which is by now the only cave one in the Western Carpathians was found here for the first time in 1966. It was found later in some other caves and abysses of the Slovak Karst. This occurrence is also the most northern border of distribution of cave pseudoscorpions (Pseudoscorpionida) in Europe. Tiny blind crustaceans live in underground lakes - copepod Elaphoidella proserpina and one of the Bathynella genus.