The consideration of the complexity and heterogeneity of La Gomera geology has allowed to develop a conceptual groundwater flow model and to identify four general groundwater situations: 1) groundwater in the Upper aquifer discharging to the sea; 2) groundwater in the Upper aquifer springing out along the main ravines; 3) groundwater in the Basal aquifer impounded by dikes and; 4) groundwater in the Basal aquifer discharging to the sea