SonarChart™, our 1' HD bathymetry layer, is constantly enhanced by millions of sonar logs from boaters like you. These new contributions, coming from all over the world, are integrated with existing data to reflect the ever-changing conditions of sea, lake, and river bottoms at a very local level.
SonarChart Shading, Relief Shading and Sonar Imagery chart overlays are updated periodically as new or better source data is acquired and integrated, allowing us to deliver expanded coverage and improved quality.
Navionics charts include more than 40,000 lakes worldwide. But that’s not all of them. We constantly source new data, so no matter where you are, you can boat and fish at a lake nearby.