Conservationists have taken to the trees across several states as part of global action to protect Tasmania's Tarkine Forest.
Those taking part have hoisted their tents high into tree branches this weekend at 112 locations in 24 countries.
The Big Canopy Campout will also focus attention on other threatened forests in Victoria and NSW, with activists in the Gladstone State Forest in Northern NSW.
The Gladstone forest is one of the last remaining koala refuges on the east coast and was unburnt during last season's fires.
"The local community have been blockading here for years and watched NSW Forestry Corporation ramp up their destructive extraction from the forest while we were evacuating or fighting fires," camper Ruby Oliver-King said.
"Recently Gumbaynggirr Conservation Group and community allies have successfully kept Forestry Corp from commencing logging in over a third of the forest."
Bob Brown Foundation campaign organiser Erik Hayward said those camping in the Tarkine were defending the forest from proposed logging in the coming summer.
"We are in solidarity with people all over the world highlighting the systematic and ludicrous demolition of our climate stores, our planet's forests," he said.
"We are defiant and will defend these forests from any more destruction."
Australian Associated Press
