Once used as a fire lookout, today the 61-metre high Gloucester Tree is one of Pemberton's best-loved tourism attractions - heralding sensational views from the top which can now only be seen from historic photos.

The karri is the tallest tree species in Western Australia and the third tallest in the world. It can grow up to 90 metres in height over a period of about 100 years.

There are several well signposted bush walking trails in the area that take you into the forest. They include the famous Bibbulmun Track and a 10-kilometre loop walk.

Watch out for rare birds in the forest including red-tailed black cockatoos.

The Gloucester Tree is part of a trilogy of Karri tree towers which are open to the public. The others include the Bicentennial Tree and the Diamond Tree.

The Gloucester Tree was named after the Duke of Gloucester who visited in 1946.

A short drive from Pemberton which is three hours south of Perth.

The ladder climb up the Gloucester Tree is currently closed however the added attraction of Aerial Adventure is located at the site enabling a zip line and high ropes experience.

The Bicentennial Tree has reopened for climbing to the midway experience.

For the latest information on the tree climbing experience here reopening please visit the Parks and Wildlife Service website: www.exploreparks.dbca.wa.gov.au/site/gloucester-tree.