The GIS module allows the user to view satellite imagery of the area. When used in conjunction with a GPS device, the software will automatically center the map on the user's position. The GIS module provides standard mapping functionality (zoom in/out and pan). Limpets can be added from the Limpet Mine ID Guide and then moved around the map or deleted. DSAS will display the limpet zones on the map, such as blast/frag and the diver safe distance.