Bi-monthly shoreline positions are provided in ASCII files that contain the x and y coordinates projected to the ETRS89. Shoreline file names follow the expression “shl_utm_clm_yyyy_mm_DD_HH_MM_.txtshr.dat”, where: “shl” = shoreline, “utm”=universal transverse mercator coordinate system, “clm” = Cala Millor, and “yyyy_mm_DD_HH_MM” stands for the full date (year, month, day, hour, minute) of the corresponding image capture.