Tasmania Police returned to the Tarkine protest camp on Tuesday morning but "at this stage no arrests have occured".

"As is our normal process, police are liaising with both protesters and Sustainable Timber Tasmania," a police spokesperson said.

The police operation comes after a 21-year-old Hobart man was arrested on Friday for refusing to leave a tree sit established in the Sumac area.

Bob Brown Foundation campaign manager Jenny Weber said on Tuesday morning that another tree-sitter, Andy Szollosi, "remains high in a tall eucalyptus tree".

"Tasmania's government is choosing to flatten the Tarkine's rare and unique, ancient rainforests," Ms Weber said.

"Until the bulldozers arrive, the plans to log these forests can be abandoned and these ancient intact forests can be protected from destruction."

Smithton man and Bob Brown Foundation critic Peter Benson said the protesters were "blatantly flaunting the law" by returning to their camp after they were moved on by police last week.

"The police would be frustrated. I think that some people will have to be made an example of," Mr Benson said.

"And if people continue to break the law, they're going to have to suffer the consequences."

Mr Benson was among a group of "concerned citizens" who planned to set up a bush rave camp opposite the Bob Brown Foundation protest on Sumac Road.

But he said these plans had been put on hold because Sustainable Timber Tasmania was "not allowing any camping whatsoever in that area".

"We don't want to break the law, we're law abiding citizens. If we get a direction we follow it," he said.

This latest clash between conservationists and law enforcement in the Tarkine comes after around 120 people protested outside the office of Premier Will Hodgman on Monday.

A "large police contingent" arrived at the Tarkine protest blockade on Tuesday morning, Bob Brown Foundation campaign manager Jenny Weber says.

The police operation comes after a 21-year-old Hobart man was arrested on Friday for refusing to leave a tree sit established in the Sumac area.

Ms Weber said on Tuesday morning another tree-sitter, Andy Szollosi, "remains high in a tall eucalyptus tree".

Tasmania Police has been contacted for comment and it is unknown at this stage if they plan to once again climb the tree and remove the new tree-sitter.

This latest clash between conservationists and law enforcement comes after around 120 people protested outside the office of Premier Will Hodgman on Monday.

Ms Weber said the government was "choosing to flatten the Tarkine's rare and unique, ancient rainforests".

"Until the bulldozers arrive, the plans to log these forests can be abandoned and these ancient intact forests can be protected from destruction," she said.

MORE TO COME