You always know which way is north, and you can always retrace a path you have followed within the past month, no matter how faint or confusing. This ability does not work in environments such as interstellar space or the limbo of the astral plane, but it does work underground, underwater, and on other planets.
This gives +3 to Body Sense and Navigation (Air, Land, or Sea). (Note: The navigational sense that guides migratory creatures to their destination is too crude to qualify; treat it as a 0-point feature.)