This feature calculates a suggested path based on your boat’s dimensions (draft and overhead clearance), helping you avoid known hazards.
Garmin BlueChart g3 (released in 2020–2021) is a series of marine chart products designed for Garmin chartplotters and multifunction displays, providing detailed nautical charts, depth contours, bathymetry shading, navigation aids, and features like automatic routing and SonarChart™ compatibility. Below is a concise, practical article covering what BlueChart g3 offered in 2021, how users obtained and installed updates then, and important notes for owners today. garmin bluechart g3 download 2021