The sediment core KES2 (37.94558° N, 22.57641° E) was retrieved from the Kaisari Polje, Peloponnese Greece, in spring 2017 using a piston corer (Stitz type). The sedimentary sequence covers 350 cm (sedimentary units 1 - 7). The grain size distribution <2 mm was measured on air-dried samples (ca. 0.3 g) using a laser-particle-analyser Malvern Mastersizer 2000. The core sequence covers the last 6000 years and was analysed to reconstruct ecosystem and landscape changes as well as palaeoclimatic fluctuations in southern Greece.