Raymarine's latest free LightHouse II software update delivers three new features supporting Navionics' popular SonarChart Live, Dock-to-Dock Autorouting and Advanced Map Options functions. For anglers, SonarChart Live generates personal 1-foot HD bathymetry maps in real time. Turn on the function and watch bottom conditions draw instantly. Then upload the sonar data to share with the Navionics community and download fully updated charts using Plotter Sync and Freshest Data. Advanced Map Options allow Raymarine users to highlight shallow areas or specific fishing ranges. Autorouting creates detailed, intuitive paths through narrow passages and channels.