Navionics+ Finnish Lakes - Small card for old models
Navionics Gold Finnish Lakes - 1GB card - a chart card for Finnish inland waters, compatible with all older Lowrance units that accept a chart card of up to 1GB or 2GB.
SonarChart
SonarChart, our 1 ft contoured chart layer, gives you a detailed view of shallow waters, ledges, humps and more.
Fish Attractors
Fish seek out particular types of habitats where they prefer to nest. In many lakes and coastal waters, angling clubs and fisheries organizations will sink structures to attract fish and encourage a healthy fishery. Navionics charts include more than 10,000 fish attractors.
SonarChart Live
With SonarChart Live, you can count on the most up-to-date information because the bathymetry is drawn on the screen of your device in real time. When you create your own maps, you can feel confident that you're making decisions based on the most recent depth data.
Fishing Ranges
Fishing Ranges will help you interpret the structure, identify patterns and focus on where to cast.
Advanced Map Options
Customize your view of Navionics charts to highlight shallow areas, adjust SonarChart contour density, and target a fishing range!
SonarChart Shading
A detailed rendering of the seafloor and lake bottoms in varying shades of blue offers anglers clear visual cues to identify fish-holding structure at a glance.
The chart covers the lakes of Finland: all the largest lakes and waterways as well as a large number of smaller lakes. Navionics Gold charts also include small craft routes. Electronic charts are an aid to navigation when using official paper charts; they are not intended to replace official paper charts. Only official charts and Notices to Mariners contain the information required for safe navigation. As always, the skipper of the vessel is responsible for the navigation methods.
Product text updated 26.9.2026.