Minimum altitude in the UK

[chopjock]

CF

I dont think he does

https://en.wikipedia.org/wiki/Altitude#Aviation

he wants to know how close he can fly to the ground, that is "absolute altitude"

height refers a QFE or an airfield datum, so it tells you the height above that datum but not what is directly below you.

All my SERA low flying permissions refer to "height above the ground", nowhere does it refer to "absolute altitude".