This schema defines the Garmin extensions to be used with the GPX 1.1 schema. The root elements defined by this schema are intended to be used as child elements of the "extensions" elements in the GPX 1.1 schema. The GPX 1.1 schema is available at http://www.topografix.com/GPX/1/1/gpx.xsd. This type contains data fields available in Garmin GDB waypoints that cannot be represented in waypoints in GPX 1.1 instances. This type contains a list of categories to which a waypoint has been assigned. Note that this list may contain categories which do not exist for a particular application installation. This type contains data fields available in Garmin GDB routes that cannot be represented in routes in GPX 1.1 instances. This type contains data fields available in Garmin GDB track points that cannot be represented in track points in GPX 1.1 instances. This type contains a temperature value measured in degrees Celsius. This type contains a distance value measured in meters. This type contains a string that specifies how a waypoint should be displayed on a map.