This interesting place can be easily reached from the path via a very short single trail, on foot or by bike.
Shell cave - the primordial sea of Röschitz. A journey into the prehistory of the Weinviertel! The gray sands below the "cave cover" lie directly on the crystalline of the Bohemian masses - typical deposits of the coast, which stretched between Znojmo and Manhartsberg about 20 million years ago. The coast was rugged and consisted of numerous small rocky islands and bays, comparable to today's granite coasts of Thailand. In the shallow, subtropical sea, seagrass meadows were created where manatees grazed. Ribs of these herbivores have been found here. Among the predators were mako sharks, whose teeth are numerous. The shells of mussels and snails are almost completely dissolved. The “cave roof”, however, is formed by a layer of hardened sandstone – the coarse sands are cemented with lime. Numerous shells of limpets, saddle clams, oysters and scallops have been preserved here. Limpets or patellas, after which the cave is also called "patella cave", lived in the immediate coastal area sitting on rocks. Their arrangement, in distinct layers, shows that they were dug up by the waves during strong storms and washed together as shells. Bones of the small, tapir-like Brachyodus were also washed into the sea from the coastal forests. The remains of this mammal can be admired in the Krahuletz Museum in Eggenburg. One of the special features is the complete shell of a turtle that was washed in by the land and is now kept in the Natural History Museum in Vienna.