Brazen campers abandoned a tent filled with empty booze containers and human waste - and scrawled 'happy camping - free tent must get rid of rubbish' on the side.
Campers occupied the tent over the weekend in the Pentland Hills, near Edinburgh, where police have stepped up patrols throughout July due to anti-social behaviour.
But it was found abandoned on Tuesday morning with a mocking message on the side.
Last year was said to be off the scale with damage inflicted on the area by people bored of lockdown - with a ranger seriously assaulted, sheep savaged by dogs, and livestock stolen.
Andrew Gallagher, 36, said: "Unfortunately, abandoned, messy campsites are not uncommon - tents, tables, chairs, sleeping bags, clothing, barbecues, all left in situ.
"Trees ripped down for firewood, glass broken all over the place, litter purposefully spread all over, human waste, used Wet Wipes, all of this, not uncommon unfortunately.
"But the cheek of this one - not just content with the ignorance of leaving a mess but to write a note, knowing that others would have to clear it up, essentially demanding that this be done."
The message read 'Happy Camping. Free tent. Must get rid of rubbish.'
Volunteer Andrew added: “The contents of the tent itself, alcohol containers, food packaging, wrappers, the usual suspects.
"Towels, clothing, and to top it off, used toilet wipes - and when I say "used" I don't mean used to wipe a nose.
"Nearby, I suspect the same people have decided to place three disposable barbecues, together, on top of dry kindling in the woods in the middle of a very high wildfire warning."
Police Scotland announced an additional deployment of officers to root out disorder in the beloved green space as part of ‘operation boxy’.
Officers said they aim to prevent a repeat of any thoughtless actions previously seen in the beauty spot, adding they will carry out enforcement ‘when necessary,’ however the operation does not begin until July 5.
Former textiles worker Andrew believes the campers were also poaching fish from the reservoir.
He added: "When the pandemic hit last year things were truly horrific as the vast majority of people were both out of work and not allowed to travel far.
"The hills were flooded with tens of thousands of people not knowing anything about the outdoor access code, where to park cars, how to control dogs, how to deal with livestock, how to camp responsibly.
"It was terrible.
"The poor rangers, a small team of only three full time rangers to cover the entire region, were run ragged with the chaos.
"The balance of visitors and workers within the region was at breaking point.
"Farmers had roads blocked, gates blocked, people were stealing lambs, dogs were killing lambs and ewes on an almost daily basis.
"One fishery bailiff was seriously assaulted by teenagers.
"These things were unheard of until the summer of 2020.
"Hopefully they are never heard of again."
