This was likely the best day so far. After the night shift went down to ca 30 m into the sediments of Lake Ohrid, the day shift enjoyed a beautiful day of sunshine and calm wind and made another 30 m. So we are at 60 m now. Significant colour changes in the cores likely indicate the shift from (the last ?) interglacial to glacial conditions and let us assume that we have cored the last ca 140 000 years now.