The Lake Kinneret Watershed (LKW) is a significant water system located in northern Israel. Over the past two decades the region has suffered from water scarcity due to frequent drought years and increasing exploitation of freshwater. These trends are expected to intensify due to climate change and population growth. The LKW is characterized by high spatial variability of topography, precipitation and land use. Its main water source is groundwater that is fed by a number of aquifers. SWAT+, a physical, semi-distributed, and continuous watershed-scale model, was applied to study the LKW surface and groundwater processes, including regions that have not been modeled to date. Currently, the model is run with a focus on surface processes, as the main springs are simulated as point sources and a time-series of their discharge is an input to the model. In the future, the model will be used to evaluate the long-term effects of various stressors under climate change scenarios and water management actions. Results of this version of the model show good correlation between observed and calculated monthly discharges of the LKW main streams (e.g., NSE > 0.6 for Meshushim, Dishon, Hermon and Upper Jordan streams). The watershed spatial variability is reflected by different values of the subbasins parameters. The extended version of the model, which includes simulations of the phreatic aquifers of the LKW by application of the gwflow module, is still under development. Preliminary simulations show a good fit between locations of main springs and cells in the model with a ‘saturation excess’ flux. Using the extended model, the LKW can serve as a case study of modelling a heterogeneous watershed, with an important groundwater component. In addition, the model could be used as an operative tool for the management of the LKW.