In particular, the project aims to develop an innovative airborne water leak detection surveillance service to provide water utilities with adequate information on leaks in water infrastructure outside urban areas (rural areas) and optimise their related performance in this field. This will be done through innovative optical remote sensing (using multispectral and infrared cameras already available in the market) and their application on two complementary aerial platforms, i.e. manned and unmanned, in an operational environment represented by two pilot sites, i.e. in Spain (Palma de Mallorca), case of water supply mains; and Portugal (Alqueva) case of multi-purpose mains serving irrigation, water supply, and hydropower.