Loch Lomond and the Trossachs National Park have said they are fighting a 'tidal wave' of litter.
Staff and volunteers are urging visitors to take their rubbish home or bin it after the surge in waste left behind.
In just two days, they collected 81 bin bags and assorted camping litter in addition to their normal weekly collections.
A post on social media about the littering has been met with outrage from the public.
Hundreds left comments shaming the people responsible for leaving the mess.
One camper said: "Makes me annoyed, I wild camp in Scotland every year, with my brother. We clean up every place we go. Triple check for rubbish. We love Scotland and are grateful to be able too wild camp. This boils my blood seeing people being the disrespectful. Great job you guys are doing."
Another added: "If they are found littering the park rangers they should be fined and barred from the park like everyone else respect for the our magical park and indeed Loch Lomond take their rubbish home and show more respect for the park rangers and their countryside."
It comes just weeks after more than 20 people were charged for trashing the National Park during 'irresponsible' camping trips.
On the first weekend travel restrictions were lifted, campers dumped litter, camping equipment including chairs and sleeping bags, broken glass and bin bags full of rubbish.
They also caused irreparable fire damage to trees and the ground in a number of locations around the National Park.
