Using TracBack function - Log into online resource > Courses > Garmin - Units > eTrex 20x and 30x > Using TracBack function - you can view a video on how to do this when logged into our Online resource
From your main Main Menu Select Where To? Icon
Select Tracks
Select Current Track
With Map displayed and the Word Go - Press down on the top of your joystick ( Enter) to start navigation on the track you are currently recording back to the start where you reset your trip computer before starting
You can also when logged in view videos for the newer etrex22x & 32x units which you will still find useful for the older model as very similar and there are a lot more training videos for the newer version.
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