Tasmania's popular tourist drawcard, the Tahune Airwalk, is being closed for essential maintenance as well as to allow nearby logging, the Government says.

Conservationists have accused the Government of putting logging ahead of tourism in its plan to close the attraction until September.

The Airwalk, near Geeveston, is an elevated walkway through a stand of some of the highest flowering trees in the world.

It is on several Top 10 Tasmanian tourist attraction lists but will be closed to visitors for six weeks.

Minister for Resources Paul Harriss said the closure had been specifically timed in the quiet tourism season.

Mr Harriss said the closure provided the opportunity to harvest working forests near Arve Road.

"Forestry Tasmania has advised that they are taking advantage of that closure to safely undertake harvesting in working forests adjacent to the road," he said.

"Is the Green movement seriously suggesting that this essential maintenance work shouldn't be done?

"Or that the harvesting should take place while the road is open, potentially putting people's safety at risk?"

Environmentalist Jenny Weber said she was concerned about the disruption to the tourism hot spot.

"We have tens of thousands of people visiting there every year," she said.

"Instead of foolishly logging a region of globally unique, towering giant trees, let's protect them and prove that we can have an opportunity for a giant tree bushwalk in intact forest, rather than another outrageous case of logging the scenery."

Access to the Hartz Mountains National Park will also be cut.

Access to the area will be restricted for six weeks. ( ABC News: Stephen Smiley )

Labor's Lara Giddings was unimpressed by the closure, saying it was unacceptable and would hurt the local economy.

"The Tahune Airwalk is the biggest tourism attraction for the Huon Valley, it's going to hurt tourism in the Huon Valley right at the time, the winter period, when tourism is at its weakest point," she said.

A spokeswoman for Forestry Tasmania said the closure was necessary and the maintenance was being done at a the quietest time of the year and it made sense to undertake the logging at the same time.

"Forestry Tasmania has deliberately timed the harvesting ... to coincide with the Tahune and Arve Road closures so that all of this work can be undertaken simultaneously to minimise any disruption to tourists and other road users," she said in a statement.