The eTrex Vista also boasts an internal memory capacity of 24 megabytes, which allows it to accept downloaded mapping data from GARMIN's MapSource® CD-ROMs, including Fishing Hot Spots®. A silver case gives this unit a high-tech look. New to the product design, GARMIN will include marine aids to navigation in addition to the basemap. These navigational aids will be pre-loaded into each unit from the factory.