From the back cover
This step-by-step video guide walks you through the key features of the Garmin GPSMAP 235. Learn everything you need to know from creating waypoints to saving fishing hotspots and setting up routes. Step-by-step instructions include: Introduction to the GPS system; Satellite & Receiver Status; Using the Navigation Screens; Creating, Using & Editing Waypoints; Going to Destinations; Creating, Editing & Using Routes; System & Navigation Set Ups; Basic Sounder Functions; Ranges & Modes; Zoom Functions; Creating Underwater Waypoints; Using Split Screens; Sounder Options; Setting Up the Sounder.