What To Look For
Global Positioning Systems (GPS) have made compasses and maps seem somewhat quaint. Using satellite technology, a GPS can pinpoint your exact location. Garmin is one of the leaders in GPS technology and makes units for all sorts of disciplines, including use in a marine environment. Garmin makes several handheld units, some of which come preloaded with freshwater charts and some with coastal charts, including the Oregon 400C ($499) and the Colorado 400C ($599). The map details include shorelines, depth contours, harbors, marinas and navigational aids. The GPSMAP 76 ($199) has basic map info in a small waterproof unit that floats. The GPSMAP 76Cx ($349) adds a color display. For units that mount in your boat, the GPSMAP 546s ($999) has a 5-inch display and comes preloaded with all US coastal maps. It also has sonar, so it can give you depth contour information to find fish and other targets. The GPSMAP 5208 ($2999) comes preloaded with all US coastal maps, is network compatible and also receives XM Satellite weather info.
Common Pitfalls
Because Garmin makes so many units, finding the right one for your needs requires prepping on the various models because if you aren't careful, you could buy the wrong one. For instance, the handheld Colorado 400 is available in a base version, a coastal version (400C) and an inland lakes version (400i). Make sure you are getting the Garmin that is most useful for your needs. The handhelds are very popular. However, if you own your own boat, the GPS Map series, especially the 5000 models, are your best bet.
Where To Buy
Garmin GPS units are available at many outdoors and marine supply shops. They are also available from many online retailers. The Garmin website has a dealer locator (see Resources).
Cost
Garmin GPS units start at $199 for a basic handheld model and go up to $6,099 for a 15-inch screen that is radar and sonar compatible (GPSMAP 5215).
