The ‘Islas Atlanticas de Galicia’ National Park is comprised of four island groups (Cíes, Ons, Sálvora and Cortegada) also called the Atlantic Islands. It is the only marine-terrestrial national park in Galicia in Spain. As it is a popular touristic destination, the park management actively works on balancing nature protection and visitors’ satisfaction through the promotion of sustainable tourism practices. Therefore efforts are made in ecotourism development. As part of this initiative, they became certified by the European Charter for Sustainable Tourism of the EUROPARC Federation.