253 m Below Sea Level? But I don't even know how to swim

[jidanni]

$ exiftool
says
https://drive.google.com/open?id=19OekHS9xfVy6ODxOqDvFvQelQQyVWsnX
is
GPS Altitude                    : 253 m Below Sea Level
when e.g., http://metapicz.com/ says it is Above Sea Level.
$ exiftool -ver
10.80

[Phil Harvey]

Interesting.

This file contains an invalid value for GPSAltitudeRef.  0 is for above sea level, 1 is for below, and this file has a 2 which isn't allowed.  ExifTool interprets this effectively as not above sea level, which isn't necessarily incorrect.

- Phil