Hellenic Institute of the Saint-Petersburg State University in collaboration with the Institute for Linguistic Studies of the Russian Academy of Sciences organized more than twenty expeditions to South Kynouria in Peloponnese (Greece) in order to describe the Tsakonian dialect. During these expeditions its participants collected a large number of oral texts in Tsakonian and it was decided to create a Tsakonian corpus so that this very interesting linguistic material could be easily accessed. This paper provides the first description of the project and discusses its current problems.