Garmin eTrex 30 Owner's Manual page 51

Data Field Description
Vert. Speed to The measurement
Dest. of your rate of
ascent or descent
to a predetermined
altitude.
Vertical Speed Your rate of altitude
gain or loss over time.
Waypoint at The last point on
Dest. a route to your
destination.
Waypoint at The next point on
Next your route.
eTrex Owner's Manual
Appendix
51