This is what I was taught some time ago...
Originally Posted by Weekend_Warrior
Plenty of hanging going on in the UK - lots of woodland with permission and access. BCUK, BCL and the like have many groups meeting up in woodland all over the UK.
So I guess, you will find more information on the BCUK forum.
Do you want to hike and just hang for the night ? I see that the Peak District is close, so may be the Dark Peak.