it was cloudy and a little bit wet Saturday and I walked through the big forests of Křivoklátsko Protected Landscape Area https://en.wikipedia.org/wiki/K%C5%99ivokl%C3%A1tsko_Protected_Landscape_Area
It was cloudy e.g. dark inside forest and insects were until noon wet and inactive.
I found this big slug eating mushroom directly on marked touristic path. It was so big that I am almost sure it is https://en.wikipedia.org/wiki/Limax_cinereoniger
http://www.molluscs.at/gastropoda/terrestrial.html?/gastropoda/terrestrial/limax_cinereoniger.html
Pentax K50 f 5,6/200 sec; ISO 3200; lens zoom 4,5-6,3/55-300 mm