The PETI Committee decided to organise a fact-finding visit to the Mar Menor in the Murcia Region in Spain. Over the years, the PETI Committee has received a significant number of petitions on the pollution and deterioration of the environmental conditions of the Mar Menor. The aim of the mission is to visit the affected areas, hear the petitioners, and investigate and discuss the subject matter of the petitions with the regional and local authorities, as well as with the Spanish competent authorities, scientists, representatives of social, business and trade union organisations.