Before the introduction of spotter planes and drones, a network of fire lookout trees was built across the south-west forests of Australia. The aim: to spot fires that were hidden at ground level by the giant Karri forests during the hot Aussie summers.
The first Karri fire lookout tower, was the Big Tree, constructed in 1938. This lookout was lost years later to a bushfire. After this tree, eight other lookouts followed between 1937 and 1952, including the Gloucester Tree chosen as a fire lookout in 1947. Gloucester Tree is 72 meters in height though the lookout is at 61 meters. Although the Gloucester tree was originally pegged with wooden pegs, now all the trees are pegged with metal pegs which are easier to grip. They are regularly checked for any faults. The Gloucester Tree has 153 pegs.
Nowadays climbing up the giants is an attraction for tourists that rewards them with amazing views at the top. No one has died making their ascent to the three trees lookouts but two people have had heart attacks after climbing the trees.