A data enrichment processing apparatus (100) comprises a processing resource (154) arranged to access, when in use, location data (300) having temporal data associated therewith, and to group a part of the location data according to a predetermined criterion. The processing resource (154) is arranged to support an analysis module (268) capable of inferring temporal access information from the part of the location data grouped, the temporal access information being indicative of ability to access physically a point of interest associated with the part of the location data grouped.