Aquifer characterization is fundamental to address questions on the occurrence and distribution of aquifers and enable groundwater management. Utilizing borehole data from water wells, hydrocarbon and coal exploration wells, integrated with geological outcrop mapping has long been the primary approach to mapping near-surface sediment and bedrock aquifer systems. These borehole data are known to be abundant in prairie provinces but can be of limited use due to variable data quality, coverage, and density making it challenging to interpret laterally continuous aquifers. In the last 30 years, geophysical methods such as electrical resistivity tomography (ERT) have proven to be effective for mapping subsurface geology, interpreting preferential flow pathways, and for groundwater exploration. More recently, several projects across Canada have deployed airborne electromagnetic surveys necessitating an advancement in applying hydrogeophysical techniques for groundwater investigations. New methods are being developed in jurisdictions such as Denmark and being deployed in Canada. For example, the novel method of towed transient electromagnetic (tTEM) surveying utilizes similar petrophysical property contrasts as ERT but substantially increases the data acquisition rates and offers a ground-based method with high resolution imaging to approximately 100 m. This session is seeking contributions that focus on the application of geophysical methods to groundwater exploration, aquifer characterization, resource management, and environmental monitoring. Case studies are encouraged from local- to regional-scale groundwater projects demonstrating technological advancement and/or the increased benefit to enhance aquifer mapping for sustainable management. The session anticipates covering technical themes related to data acquisition methods (e.g., electrical, electromagnetic, ERT, seismic, and gravity) in different geological settings, data processing and inversion, and infrastructure challenges.