Research will entail cave air monitoring (CO2 concentration, airflow velocity and air temperature), groundwater monitoring and sampling (dischargeand water chemistry), and comparisons with outside meteorology (temperature, wind, precipitation, soil conditions). The data obtained from the project will enable karstologists, climate and speleothem scientists to better constrain the functioning of karst systems., In vadose zone caves, a network of automatic weather stations and data loggers will be installed, providing long-term time series of cave microclimate parameters. In addition, we will develop and deploy an array of low-cost CO2 and temperature loggers, based on the technological Arduino platform, to achieve higher spatial and temporal data resolution, and also to provide interested students, young researchers and protected areas managers with an affordable tool for geoscientific education on field measurements in karst.