Abstract: A portable tourist guide and guiding service. The portable guide has a GPS positioning module for determining its precise position, and a portable computer system. The computer correlates the device's position with relevant touristic information of multimedia format, including digitized audio and visual data. Updatable data storage is provided so that the relevant information is stored in the device and may be updated as needed. A user interface is provided to gather instructions from a user and provide this user with the touristic information.