Example of a hiker with a handheld GNSS receiver.
A simple trackpoint including GNSS-derived speed and total distance:
<trkpt lat="50.5710623" lon="-2.4563484">
<ele>103.92</ele>
<time>2022-04-11T10:16:01Z</time>
<extensions>
<pvt:ext>
<pvt:sog>1.842</pvt:sog>
<pvt:dist>1234.567</pvt:dist>
</pvt:ext>
</extensions>
</trkpt>