Salt Mill of Veneziola Monument · San Javier, Mar Menor, Murcia Image of San Javier, not of the place itself. A salt mill in the upper part of La Manga, used to extract water from the Mar Menor by evaporation; it is the most complete of those preserved in the area, retaining part of its original wooden structure. Photo: Joanbanjo (CC BY-SA 4.0) What to see and do in San Javier