The understanding of frost weathering processes and their impact on cave development is the aim of a field study in Lower Austria. As study-site, three caves developed in different lithology and altitude, which correspond to tectonic faults were chosen. In these caves temperatures of air, soil and rock are monitored. Additionally, the rock moisture and the amount of weathering material are recorded. Although frost weathering caves are rather small they occur in a high number in Lower Austria and therefore they are of scientific interest.