Abstract
This paper is aimed to overview, including derived preliminary-results, glider missions carried out in waters of the Macaronesia region, connecting Portugal mainland and the archipelagos of Madeira and Canary Islands, within the framework of H2020-AtlantOS and Interreg Atlantic iFADO projects. The missions conducted represents the first attempt in this context aiming to stablish glider endurance-lines across the area, to increase ocean-observation capability from a sustainable and cost effective perspective by the use of cutting-edge technologies, and at the same time, to contribute to the regional marine-monitoring strategy in support to the main international ocean-observations programs and initiatives.