1. A method of operating a navigation system comprising: determining a route between a first location on a road network and a second location in a facility off of the road network; composing individual guidance messages for travel along a portion of the route on the road network; and obtaining from a geographic database associated with the navigation system a pre-composed set of guidance instructions for travel in the facility along a portion of the route off of the road network, wherein the guidance instructions comprise at least one maneuver instruction and at least one reference to a visible feature in said facility, wherein the geographic database includes data representing said pre-composed instructions associated with data representing said facility.