“On The Water Maps”


Experience unparalleled coverage and brilliant detail when you’re on the water. BlueChart® g3 coastal charts provide superior coverage, clarity and detail with integrated Garmin and Navionics® content and Auto Guidance1 technology.

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Auto Guidance1 technology uses your desired depth and overhead clearance to calculate routes and show a suggested path to follow — overlaid onto your chart.


BlueChart g3 coastal charts possess the best of Garmin with the best of Navionics data, bringing you advanced chart detail for navigation as well as up to 0.3 metre contours for improved fishing.


Want even more from your charts and maps? Then step up to BlueChart® g3 Vision.

BlueChart g3 Vision is our premium coastal chart offering, which includes all the reliability, features and integrated Garmin and Navionics content of BlueChart g3 while adding exceptional features such as High-resolution aerial photography, satellite imagery and unique 3-D views above and below the water.


With BlueChart g3 Vision you get realistic 3-D views both above and below the water. MarinerEye View provides a 3-D representation of the surrounding area both above and below the waterline. FishEye View takes you below the waterline and shows shows 3-D representation of bottom and contours.


Garmin BlueChart g3 Vision offers Crystal-clear aerial photography shows exceptional detail of many ports, harbours and marinas and is ideal when entering unfamiliar ports.

Compare BlueChart Features

BlueChart feature comparison BlueChart g3 BlueChart g3 Vision
Integrated Garmin and Navionics data
Auto Guidance1 technology
Up to 0.3 m contours
Depth Range Shading
Shallow Water Shading
Raster cartography
Navigational aids, spot soundings, depth contours, tides and currents and detailed harbors and marinas
High-resolution Relief Shading
High-resolution satellite imagery
3-D views (MarinerEye and FishEye)
Aerial photography

1Auto Guidance is for planning purposes only and does not replace safe navigation practices. Auto Guidance is not included in preloaded BlueChart g3 for ECHOMAP™ Plus series chartplotters

Additional cartography resources

On Water Maps