Sounds to me like the Viet Taff need reminding about the Sound of Freedom!
Lllanuwchllyn - bottom left of Bala Lake, so an obvious visual feature...
No doubt some local troublemaking councillor in Pant-y-Lynr or somewhere is trying to make a name for himself.
Although they sometimes have a point. Mink are nasty little sods and start killing each other when frightened. So a red spot appeared on the AFCENT LL chart near one of our Gnat navex routes and we were ordered to avoid it. But Jones-the-mink got angrier and angrier as he was still getting overflights...
One the next issue of the chart, the red spot had been replotted - our careful avoidance of the previously plotted location had ensured that we'd all flown directly overhead the mink farm...