location of the gauging station.
https://maps.app.goo.gl/EPgRRqRgDjhju7vK8

the path to walk down to get to the gauge begins across the street of where the private road comes in.
follow the main path until you see a red dot marker. After that the path slowly begins to descent. Continue to follow the red dot markers to the river and find the gauge a few meters upstream.

and please update on rivermap, if your check the level:)

cheers,
Kilian