The Riet Vell Reserve Is one of the natural areas of the Ebro Delta managed by SEO / BirdLife, the most veteran conservation organization in Spain. This entity develops activities ranging from the promotion of organic agriculture of rice to the recovery of natural habitats of wetlands, conducting applied research, favoring protected species, maintaining environmental and landscape quality, rural development and Ecological tourism. In addition, specific programs of research, pedagogical dissemination with schools, conservation, dissemination and volunteering are developed.