Navionics’s SonarCharts use sonar logs from users, along with data from the hydrographic office and proprietary surveys to add detail to a layer of cartography.
As Interphase Technologies joins Garmin, forward-looking sonar may get a boost.
The Internet would have you believe that Fishers Island is filled with fierce, tourist-hating locals. Senior Editor Dan Harding put that rumor to the test on a recent cruise. Find out if he lived to tell the tale here. ▶
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