Read the legend of the navigation map to understand what you are looking at. Different maps show different icons, and these icons can help you locate either the nearest gas station, airport or harbor. The legend will also show a measure of distance used on a map. You can use a ruler and calculator to measure the distance you have to travel.
Use a compass to determine which way to travel, and which way you are currently heading if you are unfamiliar with the area.
Read the terrain you are about to travel. This can give you an idea of the materials you will need on your travel.