Resetting your GPS at the start of the walk- Log into online resource ) > Courses > Garmin - Units > eTrex 20x and 30x > Resetting your GPS at the start of the walk - Video
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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