EXPLORATIONS IN REDAKA 2 CAVE (Aleta Guadelli – aleta.guadelli@gmail.com, Nikolai Sirakov, Jean-Luc Guadelli) Sondage 4 was carried out over an area of 2 sq. m situated in the beginning of the cave entrance. The litho-stratigraphic layers 1 – 4 were documented and they were relevant to the stratigraphy in Sondage 3. No significant post-depositional processes were documented. Part of a heart, containing two flint artifacts and bones (some of them with traces from use), was discovered in facies 4bc. Probably, the hearth was surrounded with limestone fragments. The flint artifacts originated mostly from layer 4. The diagnostic finds included a set of flakes, some of them dull, and nuclei, which reflected a developed technology for the production of flakes. The sets from facieses 4h and 4bc, as well as the entire layer 4, most probably were related with an Upper Palaeolithic tradition identical with the Kozarnika Culture. The Mousterian point discovered in Sondage 3 had traces from sediment, probably relevant to layer S3-5, and probably was a Middle Palaeolithic element that indicated the late or the final stages of the Mousterian industries known in the Kozarnika Cave. A pendant from an ox foretooth, produced with scrapping, was found. It had traces of passage through the digestive tract of a hyena. The bone finds related layer 4 with the earliest phase of the Kozarnika Culture (VII). The osteological material had traces from predators and human activities, while both predators and herbivorous were equally represented. It included Artiodactyla, Bovinae, Capra cf. caucasica, Rupicapra rupicapra, and Vulpes vulpes. The cave was a lair of hyenas and foxes, which was visited by humans. There were at least two episodes of human presence at the end of the Middle and the beginning of the Upper Palaeolithic periods, which were related to the cultural communities in the Kozarnika Cave dated from 50000 to 30000 BP.