Lower COVID-19 restriction over the Summer 2020 allowed us to continue the exploration in Mrzla Jama near Bločice village. By continuing the exploration over the "muddy slide" we got to a big chamber that was hiding the entrance to the fifth siphon, which we explored to the first sidemount restriction. A dry continuation at higher elevation (~ +10 m) to the East was also explored. "Beautiful passage" is highly decorated with dozen of smaller lakes with still water. It ends with a collapse at d. 830 m but several vertical openings offer promising leads.