In spite of all electronic navigation devises on a modern ship bridge, bridge crews sometimes loose their orientation. Reasons for this might be excessive cognitive workload caused by fatigue, short decision times due to high speed or too many instruments to read and integrate. By tradition electronic chart displays and radar screens are displayed in north-up orientation. On south bound courses this necessitates mental rotations to align the chart with the real world. Research has shown mental rotations to take time and to be a possible source of errors. In an information design research project on intuitive maps at Mälardalen University in Sweden, a 3-D nautical chart has been proposed allowing the bridge crew to access an egocentric bridge perspective of the chart. The cognitive workload is supposedly eased when mental rotations no longer are needed. To test this hypothesis, a laboratory experiment was designed. Forty-five subjects each drove a vehicle trough four different mazes using four different types of maps: a traditional paper chart, an electronic chart plotter in northup mode, an electronic chart plotter in course-up mode and the proposed egocentric 3-D nautical chart. The experiment showed significant results suggesting that navigation with a 3-D egocentric display leads to faster decision making and less errors.