Garmin GPSMAP 66i In-Depth Manual page 71

INREACH WEATHER FORECASTS
Receive inReach weather forecasts, so you can
make educated decisions when outside of cell
phone coverage.
You can request forecasts from your GPSMAP
66i or paired Garmin Explore app for your
current location, a waypoint or GPS coordinates.
Choose from 3 types of forecasts:
 Basic land forecast
 Premium land forecast
 Marine forecast
(incurs additional charge)
• Designed for deep waters
• Can only be requested if the selected
location is at least 5 miles from shore
(counted as text message)
(incurs additional charge)