• Use something like OSMAND which gives you offline mapping. You can display a gpx route/course/track on the map. You can then either use this to actively navigate you or use it as a reference when at junctions etc. The difference between the two options is battery life.
    The garmin touring is badly misnamed and almost any other garmin with maps is better for touring.
    Screenshot of OSMAND in active mode.

    And in passive mode

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