As these maps would be used for a wide variety of purposes across several different countries, the key mapping challenges were in ensuring the right layers were included on the right maps and any sensitivities were flagged for the client to take into consideration. For the world, UAE and GCC maps, Explorer's mapping experts used our own mapping data for the borders and labels and applied the approved design. For the site location maps, we digitised the client's CAD files of each port site, then conducted our own research to discover any changes to the areas, such as new buildings or roads. Each information type, such as labels, borders and icons, was added to the maps in separate layers so the client pick and choose what information to display depending on the map's intended use.