Garmin BaseCamp

Garmin BaseCamp is a map viewing / GIS software package offered free for download by Garmin, primarily intended for use with their GPS navigation devices. BaseCamp serves as a replacement to the now unsupported Garmin MapSource.

Features

View map and satellite imagery and transfer it to the GPS device.
Plan trips by entering routes and waypoints and transferring them to the device.
Geotag photos and export them to e.g. Picasa.

Mac

The Mac version has not been updated for ARM CPUs, and when launched on M1/M2 CPUs will run on Rosetta 2.